This Podcast Will Kill You

That same little bottle of retinol serum sitting on your bathroom counter - how does it work? Does it actually work? Those are the questions we’re taking on in part two of our retinoids two-parter. The answers, as you might expect, are complicated. Because as it turns out, “retinoid” is a catch-all term for a bunch of different types of compounds, all of which work in slightly different ways. And on top of that, the testing required to demonstrate efficacy isn’t exactly held to the highest of standards. But we do the best with what we have to get to the bottom of this retinoid puzzle. Tune in to learn everything you ever wanted to know about retinoids.

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That little bottle of retinol serum sitting on your bathroom counter - what do you know about its history? This week, we’re digging deep into the man behind the medicine, renowned dermatologist Dr. Albert Kligman, and the unethical research he conducted at Holmesburg Prison in the mid-20th century. Kligman’s research program at Holmesburg spanned decades, involved dozens of experiments (including tretinoin) and thousands of individuals, received ample funding from public universities and many pharmaceutical companies, and was generally praised until it all came crashing down in the early 1970s. But, as we’ll discover, the unethical behavior persisted even after the program’s closure as Kligman fought to get tretinoin to market. The murky history of retinoids might be a bit too long to include on the label, but this episode forces us to consider the human cost of a household product and the importance of acknowledging that history.

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When the Massachusetts Institute of Technology admitted in 1999 that they had discriminated against women on its faculty, it sent shockwaves throughout institutions of higher learning across the country. In this TPWKY book club episode, Pulitzer Prize-winning journalist Kate Zernike joins us to discuss her book The Exceptions: Nancy Hopkins, MIT, and the Fight for Women in Science, which details the sequence of events that led sixteen scientists to demand the equality that had been denied to them for so long. Zernike, who was one of the reporters to break the story in 1999, centers this story on molecular biologist Dr. Nancy Hopkins, who, armed with a tape measure, brought this history of marginalization to light. Simultaneously personal and panoramic, The Exceptions carefully illustrates the sexism entrenched in higher education and academia and sends an important message: this problem is far from solved. Tune in for a fascinating discussion about an infuriating topic.

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Stiff person syndrome, like many rare diseases, does not get nearly the same amount of screen time or name recognition that other, more common diseases do. For many people, Celine Dion’s announcement of her diagnosis with the condition in 2022 marked the first time they had heard of it. This limited awareness surrounding stiff person syndrome marks just one of the many challenges keeping this disease and other rare disorders in the dark. In this episode, we attempt to shed some light on stiff person syndrome, exploring the complex biology, frustrating history, and hopeful future of this disease. Because while the field of stiff person syndrome research faces many hurdles, there are also so many individuals - researchers, patients, advocates - and organizations that fight to bring this and other rare disorders into the light. Tune in today!

Links:

National Organization for Rare Diseases

Genetic and Rare Diseases Information Center

Johns Hopkins Stiff Person Syndrome Center

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Five years ago, we asked you all to ask us anything, and you delivered. We answered dozens of listener questions, like how we first met, our favorite quarantinis, where we were in our career journeys, and so many more. But in the years since that first “ask us anything”, a lot has changed for both of us! So we’re coming back to you with the answers to more of your probing questions, like “what disease names would make good person names?”, “where are you in the world these days?”, “if you could have only one sandwich for the rest of your life, what would it be?” and a million more, ranging from serious to silly and everywhere in between. Tune in for a non-stop, self-indulgent Ask the Erins!

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How is it that we can’t remember where we put our keys or the name of the person we just met, but we can recall in excruciating detail the embarrassing interaction we had at the grocery store ten years ago? Sometimes it seems like our memory works against us more than it does for us. But, as it turns out, this aspect of our memory is more a feature than a bug, and the key to understanding the difference may lie in our evolutionary history. Dr. Charan Ranganath, Professor of Psychology and Neuroscience and Director of the Dynamic Memory Lab at the University of California at Davis, joins us today to discuss his book Why We Remember: Unlocking Memory's Power to Hold on to What Matters. Dr. Ranganath deftly guides readers through not only the “how” of memory formation but also the “why”, helping us to understand why we remember certain things and forget others. Tune in for a fascinating discussion ranging from the importance of context (like smell) in memory to the different types of memory, from decision-making to memory competitions, and so much more!

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One day, you’re enjoying a beautiful hike through the tall grass. A few months later, you find yourself in anaphylaxis from a post-hike hamburger. The culprit: a tick bite. In this much-requested episode, we take on alpha-gal syndrome, the red meat allergy triggered by the bite of a tick. Sometimes science is stranger than fiction. How exactly does an encounter with a tiny arachnid cause your throat to swell up and your skin break out into hives hours after eating red meat? Is it all red meat? Is it all ticks? How on earth did anyone even make this connection in the first place? Those are just a few of the questions we answer in this action-packed episode that has us venturing into surprising topics, like primate evolution, ancient epidemics, and cancer treatments. Tune in for all this and more.

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For life on this planet, iron is not optional. It is essential. When our iron levels are low, we can get sick, and when they get really really low, we can even die. But you know what they say, too much of a good thing can be a bad thing. In the case of iron, the genetic condition hemochromatosis is often to blame for iron overload, but why is too much iron a bad thing? In this episode, we explore that question and many others, starting with why iron is a biological non-negotiable and how a lack of iron regulation in hemochromatosis can lead to severe tissue damage. Then we’re going Deep Time™ to suss out the origins of our dependence on iron, a journey that eventually leads us to the Neolithic Revolution and the 20th century realization that a certain ancient medical practice is not as obsolete as previously thought. Tune in to catch us ironing out the details of this incredibly common genetic disorder.

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Phosphorus is an element that wears many faces. Its overuse as a fertilizer has polluted freshwater ecosystems, transforming rivers and lakes from thriving communities to lethal zones devoid of life. Its role as an explosive has brought fiery death and suffering to many during times of war. And its dwindling global supply poses an existential threat to humanity. Because phosphorus is not just a destructive force - it is essential for all of life on this planet. In The Devil’s Element: Phosphorus and a World Out of Balance, author Dan Egan explores the multi-faceted nature of phosphorus and the surprising ways this element has shaped our world. Egan, Journalist in Residence at the Center for Water Policy in the University of Wisconsin-Milwaukee's School of Freshwater Sciences, transports readers from the guano-covered islands off the coast of Peru to the fertile fields of the American Midwest, from the 17th century laboratories reeking of boiled urine to our tenuous future as the demand for this element outpaces its supply. Tune in to learn about this powerful yet underappreciated element.

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The stethoscope. It’s iconic. You’re playing Pictionary and you pull the “doctor” card? Easy - sketch a stethoscope. Need a last-minute Halloween costume? Easy - throw a stethoscope around your shoulders. Google image search “doctor” and you can count the number of stethoscope-less doctors on one hand. How did this instrument become so emblematic of the field of medicine? What can it tell us about our heart and lungs? And is its future under threat? That’s where this episode comes in. We explore the invention, evolution, and application of this tool, from the tragic life story of its inventor to the surprising amount of controversy over whether the stethoscope still holds a place in medicine today. Tune in for all this and so much more, including a doctor’s-ear perspective of the heart and lungs, complete with all the heart and lung sounds you could want!

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“Is it gonna be poop or is it gonna be barf?” It’s the question we all fear during a bout of food poisoning when time is of the essence and a decision has to be made before it’s made for us. Often, the germ forcing this question upon us is none other than the dreaded norovirus. First called “winter vomiting disease” for reasons obvious to anyone who has been unfortunate enough to become infected, norovirus now conjures up images of puking passengers aboard cruise ships or oysters on the half shell secretly harboring a vomiting virus. In this episode, we delve into the world of norovirus, examining what qualities make it spread so rapidly and sicken us so quickly. Our tour of norovirus history takes us down some surprising roads, where we meet Vomiting Larry and chat about vulture vomit. We round out the episode by looking at norovirus by the numbers, dispelling the notion that norovirus can only be found aboard cruise ships. Spoilers: it’s everywhere.

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In the pre-antibiotic era, tuberculosis was one of the biggest killers humanity ever faced. The specter of the ‘great white plague’ hung over towns and cities across the world, cities like New York whose population boom in the early 20th century paved the way for this deadly disease to spread throughout crowded tenements. As tuberculosis rates in NYC reached a breaking point, city officials sought to solve the problem by establishing a sanatorium on Staten Island. But they quickly ran into an issue - who would be willing to work there, exposing themselves to this untreatable deadly disease? In The Black Angels: The Untold Story of the Nurses Who Helped Cure Tuberculosis, author Maria Smilios tells the story of the courageous nurses who worked at Sea View Hospital on Staten Island, facing the constant threat of disease and perpetual racism from patients, colleagues, and neighbors. Smilios brings these women’s stories to life, describing how they persevered in these difficult conditions to ultimately help bring about the cure for tuberculosis, for which they have only recently been recognized. Tune in for a fascinating discussion about a monumental time in tuberculosis history!

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In last week’s episode/love song to poison control centers, we journeyed through the history of these centers, from idea to institution. This week, we pick up where we left off by taking stock of the incredible impact that poison control centers have had on public health and individual lives. We also get a thrilling behind-the-scenes look at the operational side of things - who is on the other end of the line when you call poison control? How do they know so much and where do they get their information? Dr. Suzanne Doyon, Medical Director at the Connecticut Poison Control Center and Assistant Professor of Emergency Medicine at the University of Connecticut joins us to answer these questions and so many more. If last week’s episode didn’t turn you into a poison center superfan, this one certainly will. Tune in today!

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If you’ve ever called poison control, you probably already have a deep appreciation for the voice on the other end of the line who provides solid answers, emanates calm, and empowers you to take whatever steps necessary to be safe and healthy. If you haven’t, this episode will turn you into a superfan anyway. How did this incredibly valuable yet often overlooked service come to be, and why did it arise when it did? In the first of what ends up being a two-part ode to poison control centers, we explore the origins of poison control centers in the US, from the early days when literally one guy answered calls from all over the country to the lifesaving nationwide coordinated organization it is today? Tune in to find out!

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Roads are essential to our modern lives, so much so that they largely exist in the background of our minds. When we do think of roads, we’re either complaining about traffic or celebrating them for enabling our restless need to explore. Can you imagine if all of the world’s 40 million miles of roads were suddenly erased? Chaos for humanity. But a boon perhaps to natural ecosystems. In Crossings: How Road Ecology is Shaping the Future of Our Planet, author Ben Goldfarb takes readers on a fascinating tour of the relatively recent science of road ecology. Even beyond their impact on roadkill, roads are powerful disruptors of natural ecosystems, bringing noise, pollution, and humans to natural areas and fragmenting landscapes. And as Goldfarb demonstrates, we are only just starting to reckon with the widespread effects of roads and integrate this knowledge into road design. After this fascinating conversation, you’ll never think of roads in the same way again!

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Think of an infectious disease. What comes to mind? A viral infection like influenza? Or a bacterial illness like cholera? Maybe some of you thought of a fungal pathogen or a parasite. But how many of you thought of a cancer? In this episode, we explore the bizarre, stranger than fiction story of devil facial tumor disease (DFTD), a transmissible cancer that has devastated Tasmanian devil populations over the past few decades. And when we say transmissible cancer, we don’t mean a cancer caused by a virus - we mean the cancer itself is transmissible. How is that possible? What does it do to the devils? What are Tasmanian devils like? What role do they play in the ecosystem? What does the future hold for these adorable creatures? Tune in for a lively discussion all about these devils and their disease, featuring Dr. Rodrigo Hamede, Senior Lecturer at the University of Tasmania and DFTD expert. This episode will have you looking up pictures of baby devils, listening to their wide range of sounds, and rethinking the lines between contagious and non-contagious disease.

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CW: discussion of disordered eating, eating disorders

Did the word gluten manifest in everyone’s consciousness one day in 2010? Suddenly, grocery stores were filled with gluten-free crackers, cookies, buns, you name it. Everyone went on gluten-free diets or knew someone with a gluten intolerance or sensitivity. For some, it might seem that gluten-related disorders went from 0 to 60 overnight, but those who had lived with these illnesses for decades knew better. In this episode, we delve into the story of gluten intolerance and celiac disease, a story which begins thousands of years ago, not just in the 2010s. We break down why gluten makes some people sick, how scientists finally made the link between grain and pain, and what promising new research is on the horizon for treating gluten-related disorders. Tune in today!

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Going to the doctor is probably not at the top of anyone’s list of enjoyable activities, but when we do go, we expect and deserve to be heard, to have our concerns listened to and our questions answered. However, most, if not all, of us have at some point felt unheard, dismissed, or even gaslit by our healthcare provider. What is it about the doctor-patient relationship or the way medicine is practiced today that enables this miscommunication or mistreatment, and how can we make things better? In Unheard: The Medical Practice of Silencing, author Dr. Rageshri Dhairyawan draws upon her experience on both sides of the patient-physician relationship to explore these questions in depth. Dr. Dhairyawan, who is a sexual health and HIV doctor with the NHS as well as a health equity researcher and science communicator, demonstrates with clarity and compassion how each dimension of healthcare, from training to research and beyond, can contribute to this pattern of patients going unheard. Tune in to this fascinating discussion today!

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CW: mentions of infertility, pregnancy loss, body-shaming

The third and final installment of our series on IVF surveys the current and potential future landscape of this powerful technology. We first trace the growth of the IVF industry in the US since its inception in the early 1980s up to today before then giving an overview of some of the regulatory and ethical considerations facing this field on a global scale. Alongside these challenges of access and regulation are the incredible innovations that expand how we use IVF today as well as paint a world of possibilities for the future of IVF as we incorporate these revolutionary technologies. Tune in for a conversation about the past, present, and possible future of IVF!

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CW: mentions of infertility, pregnancy loss, suicide

In the second part of our three-part series on IVF, we’re picking up where we left off last week. From the historical side of things, that means investigating how the revolutionary technology of IVF was developed over the decades of the 20th century leading to the first “test tube babies” born in 1978, and how the field of IVF transformed from uncertain technology to burgeoning industry. From the medical side of things, that means exploring what a typical cycle of IVF might look like step by step (or rather, injection by injection) and go over how we define “success” when it comes to IVF. If you’ve ever wondered what exactly goes into the IVF process and how we developed such an incredible technology, this is the episode for you!

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Content Warning: mentions of infertility, pregnancy loss

We’re coming at you with not one, not two, but THREE whole episodes on IVF (in vitro fertilization) and other forms of assisted reproductive technologies (ART) over the next several weeks. Our first episode in this series starts things off with a broad examination of infertility over space and time. We take a closer look at headlines claiming infertility is on the rise, leading us to ask how we assess and measure infertility and whether those headlines take into account the changing meanings of the concept of infertility over human history. After our voyage through the social history of infertility, we explain what to expect when you go in for fertility testing, covering some of the most common causes of infertility and what “unexplained infertility” means as a diagnosis. But perhaps the most important part of this episode and the rest of this series are the firsthand accounts contributed by listeners who share some of the most intimate and emotional parts of their lives. We are forever indebted to all of you. Tune in today for part one of this series!

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The word “poison” is much more subjective than it may first appear. It’s likely you’ve come across the phrase, “the dose makes the poison”, referring to some compounds that are beneficial in small amounts but deadly in others - such as digitalis. And then there’s the intended recipient of the “poison”; a poison to one animal might be a boon to another, like milkweeds and monarch butterflies. Our own relationships to poisons can be unpredictable. Attracted, addicted, healed, repelled, harmed, neutral - all are possible alone or in combination. Why do organisms produce caffeine, penicillin, alcohol, capsaicin, opioids, cyanide, and countless other poisons, and why are our responses so varied? That’s exactly what author Dr. Noah Whiteman explores in his book Most Delicious Poison: The Story of Nature's Toxins--From Spices to Vices. Dr. Whiteman, who is Professor of Genetics, Genomics, Evolution and Development and Director of the Essig Museum of Entomology at UC-Berkeley, takes us through the evolution, chemistry, and neuroscience of plant- and animal-derived poisons and explores the fine line between healing and harm. Weaving together personal narratives with stories of scientific discovery and evolutionary biology, Dr. Whiteman presents an expansive view of the world of these poisons and what they mean to us. Tune in today!

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Did our episode on maggots leave you wanting more squirmy wormy yet oh so cool content? You’re in luck. Because this week, we’re following up our maggots episode with a companion piece on leeches. Leeches have been used by healers and physicians for millennia, and they’ve come back into style for treatments today, for very good reason. If you’ve ever wondered what makes leech saliva so magical, why barber poles are striped with red and white ribbons, or how leeches behave as parents, then this is certainly the episode for you. And we are so excited to be joined by friend of the pod Dr. Robert Rowe, who shares a tale of leeches from the front lines of plastic surgery. Dr. Rowe MD, MBA, MPH is a Preventive Medicine Physician who serves as adjunct faculty with both the University of North Carolina Preventive Medicine Residency Program and the Gillings School of Global Public Health. He is also the creator and host of TarHeal Wellness, a podcast dedicated to the health and wellbeing of medical residents, touching on physical and mental challenges many other people face as well. For those who have friends or family who are doctors or training to be, it's a great way to hear about some of the challenges of residency and how they can work through and overcome them. Available wherever you get your podcasts!

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The COVID-19 pandemic started with a bang - lockdowns, grocery store shelves cleared of their goods, toilet paper shortages, and a pervasive sense of panic. But more recently, it has slowly faded into the background for many of us. The WHO says that while we’re no longer in crisis mode, we are still in a pandemic. What does that mean for us in our daily lives? In this TPWKY book club episode, we’re joined by Dr. Paul Offit to discuss his recent book Tell Me When It’s Over: An Insider’s Guide to Deciphering COVID Myths and Navigating our Post-Pandemic World [Interview recorded February 21, 2024]. Dr. Offit, who is a pediatrician, vaccine expert, vaccine co-inventor (rotavirus), member of vaccines advisory committees, and long-time vaccine advocate, explains some of the COVID disinformation that continues to circulate about the virus, discusses where government institutions went wrong during the early months of the pandemic, and what we can expect now that the pandemic is no longer the public health emergency it once was. Tune in for a fascinating reflection on where we are in the pandemic today and how we can all fight against the rise in anti-science that threatens the future of public health.

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Just reading the title of this episode may have been enough to make you feel grossed out and creepy crawly. And now we’re asking you to listen to a whole episode about maggots? But trust us, it’s worth the journey. Because these little creatures have a hidden depth to them that will surprise, delight, and, we would venture to say, inspire. In this episode, we explore the many ways that maggots have been used by medicine over the centuries up to the present day and the properties they possess that make them heroes of healing. With a discerning palate and something called extracorporeal digestion, maggots can show us that, when it comes to wound healing, teamwork makes the dream work.

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What does it take to make the WHO’s list of high priority pathogens of pandemic potential? Ask Nipah virus. Extremely deadly with a wide host range and no effective treatments or vaccine (yet), Nipah virus has certainly earned its place on this list. In this episode, we explore where this virus came from, how it can make us so very sick, and the 1998 outbreak in peninsular Malaysia that put Nipah virus on the map. But we don’t stop there! We bring on expert guest, Dr. Clifton McKee, research associate at Johns Hopkins Bloomberg School of Public Health to guide us through the ecological factors that drive Nipah virus spillover events and outbreaks. With Dr. McKee’s help, we explore what a One Health approach to Nipah virus looks like and how it integrates study across animals, humans, and the environment to help predict and control when and where this virus might spill over. Tune in to learn more about this deadly virus that inspired the 2011 movie Contagion.

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We live on the edge. Whether we fail to acknowledge it or try not to think of it, that fact remains true for most of us. A chemical shift, a rogue protein, a marauding molecule - our brains are vulnerable to an array of attacks that could dramatically alter our connection with the world and ourselves. In this episode of the TPWKY book club, Dr. Sara Manning Peskin, MD, MS, assistant professor of clinical neurology at the University of Pennsylvania and author, joins us to discuss her book A Molecule Away from Madness: Tales of the Hijacked Brain. Deeply fascinating, occasionally terrifying, and always empathetic, A Molecule Away from Madness features individual cases of the brain gone awry. Dr. Manning Peskin artfully combines these emotional and personal stories with approachable explanations of how our brains work and historical descriptions of how we gained this understanding. Tune in to this captivating conversation wherever you get your podcasts!

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Does it seem like the supplement section of your grocery store gets bigger every time you go in? Or that all television commercials these days seem to be advertising dietary supplements that promise to improve your concentration, help you lose weight, make you happier, healthier, smarter, stronger, cooler, poop better or some mix of those? You’re not imagining things. The explosion of the US dietary supplement industry over the past few years is very real, and when you’re inundated with ads for supplements everywhere you turn, it can be very difficult to navigate whether these things actually do what they say and how much they’re allowed to say without actually doing anything. That’s where this episode comes in. We take you through what supplements actually are, how their regulation in the US has changed over the past century, what dietary supplements can and cannot claim on their label, and how the supplement market has fared since the Covid pandemic (spoilers: it’s thriving).

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A dull pounding headache. Body aches that come and go. Chills that set your teeth to chattering and have you reaching for the fluffiest blankets to warm up. But the thing is, you’re already warm, hot even. At least according to the thermometer. That’s right, you’ve got a fever. Throughout the years of making this podcast, we’ve begun many a disease description with “it started with a fever” but we haven’t ever explored what that really means in depth until this episode. We take you through why fevers happen, how they work, why on earth you feel cold when you’re actually running a temperature, and whether they’re helpful, harmful, or somewhere in between. We then poke around in the history of thermometers, exploring when someone first thought to measure human body temperature and how that changed the concept of Fever the disease to fever the symptom. This is a red-hot fever dream of an episode with some very fun fever facts, so make sure to tune in!

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The TPWKY book club is back in action, and we’re thrilled to be starting this season’s reading journey with Dr. Deirdre Cooper Owens, reproductive rights advocate, Associate Professor in the University of Connecticut history department, and award-winning author of Medical Bondage: Race, Gender, and the Origins of American Gynecology. The history of science and medicine often focuses on the achievements of wealthy, white male physicians and researchers whose names are etched on medical school buildings, libraries, and dormitories. Rarely do these stories give voice to those whose bodies or labor were exploited in the name of scientific progress. In the first book club episode of the season, Dr. Deirdre Cooper Owens joins us to discuss the Black enslaved women who worked alongside the so-called “Father of Gynecology”, James Marion Sims, as both patients and caregivers in nineteenth-century America. Our conversation takes us through the inherent contradictions in the way nineteenth-century physicians wrote and thought about race, gender, and health, and how broad changes in medical practice during this time promoted the dissemination of unfounded beliefs in how white and Black bodies experienced pain, health, and disease. Tune in for a fascinating conversation that will have you immediately adding Medical Bondage to your to-read list!

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In many ways, this week’s episode on myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a companion piece to last week’s episode on Long Covid. The two share many similarities: a wide range of debilitating symptoms lingering long after infection, an illness which can transform from day to day or week to week, dismissal and downplaying by the medical community, a big question mark under “pathophysiological cause”, and so many others. These parallels can tell us a great deal about our concepts of disease and how we deal with uncertainty in science and medicine. But the differences between these two can be equally revealing. In this episode, we dig into what we know and what we hypothesize about the biological underpinnings of ME/CFS before tracing the twisty history of this disease, as popular perception switched back and forth and back again from “real” to “imagined” disease. We wrap up the episode with a look at some of the current research and promising treatments for ME/CFS. Both ME/CFS and Long Covid demonstrate the power of patients and patient advocates in raising awareness about poorly understood diseases and the impact that sharing personal stories can have. You can find more incredible work by Katie Walters, the provider of one of our firsthands for this episode, by clicking on this link.

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We’re back with our season 7 premiere, and we’re kicking things off with a topic that we’ve wanted to cover for a long time, even if the topic itself hasn’t been around all that long. That’s right, we’re taking on Long Covid. When SARS-CoV-2 began making its way around the world in 2020, it was thought to cause a mild illness in most people, with complete recovery a couple of weeks after first getting infected. But just a short time into the pandemic, people began to report debilitating symptoms lingering for months after recovery was “supposed” to happen. What started out as a trickle of reports soon turned into a tsunami, and this condition, which came to be known as Long Covid, transformed our understanding of this viral infection. In this episode, we explore how the concept of Long Covid was defined by those who experience it, who also continue to advocate for better treatment, more research, and real compassion from medical professionals. We examine what we currently know about the biology of this condition, and delve into some of the most promising research avenues that may give us a greater understanding of or ability to treat Long Covid. This story is still being written, but already it can tell us so much about our concepts of infectious disease and how the medical system treats those with “invisible” illness.

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For our season 6 finale, we’re spending some time with menopause. How many nicknames can you think of for menstruation? Quite a few, I’m sure. “That time of the month”, “Aunt Flo”, “the red wave”, “period”, the list goes on. But what about euphemisms for menopause? We’ve got “the change” or “change of life”, “climacteric”, and… that’s it? There may be more out there, but the comparison is revealing. Despite the fact that roughly half of the global population has or will one day experience menopause, the lack of nicknames demonstrates the silence, often tinged with shame, still enveloping it. In this episode, we explore the roots of this silence and the many historical misconceptions about menopause that frame our current perspective. We also examine the effect that this silence has on our understanding of the physiological processes underlying this transition. Why do some people experience symptoms and others do not? Why do humans experience menopause? What is the grandmother effect? What’s the latest on hormone replacement therapy? These are only a sampling of the many questions we delve into in this info-packed, frustration-laden, and eye-opening episode.

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Raise your hand if you or someone you know has had their tonsils removed. If your hand is sky-high, there’s a pretty good chance that you (or that person you know) are from the US and were born before 1980. Of course, maybe that’s not the case, but tonsillectomies certainly fit in the category of 20th-century fads, along with Tamagotchis and the Atkins diet. While the procedure is still widely performed today (and for very good reasons), the frequency of tonsillectomies has dropped drastically from mid-20th century rates. In this episode, we explore why tonsillectomies became so popular, when they fell out of favor, and what about tonsils makes them worthy of removal. Tune in to be horrified by ancient tonsil removal techniques, shocked at how long it takes new knowledge to change policies, and appreciative of just how cool tonsils actually are.

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This one’s not just for the dogs. It’s also for the cats, the raccoons, the wax moths, the birds, the mice, and so many other critters. Oh, and of course the humans. Even though most of us may be familiar with parvovirus through our canine friends, the world of parvoviruses is much larger. In this episode, we explore that world, focusing first on the biology of these tiny DNA viruses and how they make us sick before tracing the history of their discovery and the pandemic spread of canine parvovirus just a few short decades ago. We are joined by the amazing Dr. Steph Horgan Smith who acts as our veterinary tour guide through the animal world of these viruses and why vaccination against them is so incredibly important. Finally, we round out the episode with some of the latest research on these viruses, featuring some very cool, very promising work on using the dependoparvoviruses as a tool for gene therapy. Tune in to learn where Fifth disease got its name, what role raccoons may have played in the emergence of canine parvovirus, and so much more.

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Often, the more we learn about a disease, the more we learn about ourselves and the world around us. The story of the genetic disorder osteogenesis imperfecta (OI), colloquially known as brittle bone disease, illustrates this perfectly. As researchers continue to uncover the mechanisms responsible for OI development and progression, the better we understand the varied and crucial roles collagen plays in all parts of our biology. As historians attempt to trace how that knowledge has accumulated over time, the more we can clearly see how science rarely progresses consistently but rather erratically and is prone to interruption. And as we assess where we are with OI treatment and research today, the more apparent the gap is between knowledge and application, and just how critical lived experiences are in understanding a disease. In this episode, we explore these aspects of osteogenesis imperfecta, and we are thrilled to be joined by Natalie Lloyd, who shares her experience with OI as our firsthand account. Natalie is a New York Times bestselling author of novels for young readers, whose recently published award-winning book Hummingbird tells the story of a young girl with OI. Heartwarming, magical, and brilliant, this wonderful book is a must-read. Tune in today!

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Parkinson’s is a disease of many dimensions. On the shelves of any bookstore or library you’ll find at least a handful of titles exploring the topic from a myriad of perspectives, and extending that search to the internet will turn up dozens upon dozens more options: how-to guides for the recently diagnosed, in-depth textbooks exploring the neurophysiology of disease development, memoirs about caregiving for people with Parkinson’s, books offering a tour through the history of research advancements. The choices seem limitless and maybe a tad overwhelming. But that’s where we come in. In this episode, we take you through many of the dimensions of Parkinson’s disease, from its complicated biology, still shrouded in mystery, to its history, peppered with transformative moments like the introduction of dopamine. We round out the episode by exploring the tremendous amount of promising research on the horizon, leaving us feeling like we’re *this* close to yet another revolution in Parkinson’s disease treatment. If you’ve ever wondered what dopamine does, who Parkinson was, and what might be next for this disease, this episode is for you.

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In the 16th century, a series of deadly epidemics swept through much of the region of Mesoamerica known as the Aztec Empire, killing untold millions. By the start of the first of these epidemics, the area had become woefully accustomed to devasting epidemic disease, as the Spanish conquistadors had introduced smallpox, measles, typhus, and influenza, among other infections. But this disease, with its tendency to induce massive hemorrhage, fever, jaundice, and rapid death, seemed different from those now familiar infections, and so was given a new name: cocoliztli. People watched in horror as cocoliztli overtook town after town, village after village, sometimes killing as much as 80% of the population and leaving nothing but desolation in its wake. Hundreds of years after the epidemics ended, debate about the pathogen responsible for cocoliztli remains. In this episode, we’re going deep down the rabbit hole of this medical mystery, linking the spread and nature of these epidemics with the characteristics of the many pathogens that have been proposed over the years. We draw from contemporary accounts, ecological analyses, and even a recent ancient DNA study to make our evaluations, but do we ever get to the bottom of cocoliztli? Tune in to find out.

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With a history extending back millennia, with a biology that leads to permanent disability for tens of millions of people globally, and with a bacterial endosymbiont that may prove to be its Achilles heel, the filarial parasites that cause lymphatic filariasis are quite the complex creatures. In this episode, we explore the intricacies of this neglected tropical disease - also known as elephantiasis. We start by examining its complicated ecology involving many mosquito and parasite species, before moving on to its tricky biology where we finally answer the age-old question, “What is the lymphatic system anyway?”. Next, we move on to the convoluted history of lymphatic filariasis, where it holds the distinction of being the first disease recognized as mosquito-borne. We wrap up the episode with a look at its present global status, grappling with some current figures on the tremendous global burden of this disease and investigating some exciting treatment developments that will hopefully bring relief to the hundreds of millions of people at risk of developing this debilitating disease.

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For every article about the risks of sun exposure or a guide to sunscreens, you don’t have to look far to find one about the health benefits of sunshine or a how-to for achieving the best tan. Messaging around sun exposure is mixed, to say the least, and it’s no wonder that despite having more sun protection tools than ever before, rates of skin cancer have never been higher. In this episode, we delve into the relationship between UV radiation and skin cancers, answering your (sun)burning questions about the different types of cancers and how sunscreens actually work. We then explore the history of sun protective methods and how attitudes around tanning have changed dramatically over time. We wrap up the episode with a look at rates of skin cancers around the globe today and exciting research showing the benefits of sunscreens as well as how AI might be used to help diagnose skin cancer. Tune in for an info-packed episode that will have you reaching for that sunscreen bottle.

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On the night of December 2, 1984, a deadly gas leak at the Union Carbide pesticide plant in Bhopal, India led to what has been described as the world’s worst industrial disaster. In the immediate aftermath of the gas leak, thousands of people died and hundreds of thousands were injured from exposure to the toxic gas methyl isocyanate. But long after the international headlines and news reports dwindled to silence, long after Union Carbide paid a paltry settlement to survivors, long after the disaster faded from much of the world’s memory, the gas leak continues to haunt the residents of Bhopal. In this episode, we trace the path of methyl isocyanate from initial discovery to the night of the disaster and the years that followed. We then explore what about this gas makes it so very deadly before assessing how the contamination still present at the site is causing health problems for residents decades after the gas leak.

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“Throbbing, pulsating pain.” “Like a drill boring into your head.” “As though your head is gripped by a vise.” “Stabbing pain hammering through your brain.” There is no shortage of metaphors used to describe the horrific, incapacitating pain of migraines. But try as we might, can any of them truly convey what it feels like to be at the mercy of such pain? In many ways, migraines reveal our shortcomings: with language that fails to accurately describe pain, with empathy when we continue to dismiss migraines as “just really bad headaches”, with medicine as we struggle to find reliable treatments and preventatives, and with biology as we fail to understand the complete pathology of this condition. In this episode, we do our best to explore these shortcomings by deep diving into what we do know about the biology and history of migraines. Why do some people get migraines and others don’t? How do certain medications work? What the heck is going on with aura? Have migraines always been around? How have people dealt with them or perceived them historically? What’s on the horizon for migraines in the future? As always, we’ve got lots of questions and lots of answers for you, so tune in today!

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Fungal infections don’t often make an appearance on this podcast, but when they do, you know you’re in for a wild ride. In this episode, we explore the rare but potentially deadly fungal infection blastomycosis. We trace the journey of Blastomyces spores as they depart from their cozy homes of decomposing wood and make their way first into mammalian lungs before possibly moving into the skin, intestines, and brain. How and why these fungi can be so deadly is our next stop, one that takes us into an unexpected direction: the fall of dinosaurs, the rise of mammals and the role that pathogenic fungi played in this transition. We delve into why comparatively few fungi are pathogenic to humans and how our warm-bloodedness may protect us. But, as we discuss in the episode’s conclusion, that protection may be weakened as our warming planet selects for fungi that can tolerate increasing temperatures. Dinos, dogs, deep time, and deadly outbreaks - this episode has it all.

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There’s no denying that human imagination is a powerful thing. It has led us to create incredible works of art, literature that transports its readers to other realms, technology that revolutionizes the way we communicate and travel, music and film that makes us laugh, cry, and hit repeat. But our imagination often falls short when trying to conceive of the world from another person’s perspective, especially when it comes to senses. In this episode, we delve into one of the most prominent examples of this: color vision and color vision deficiencies. First, we take you through how color vision works and just how non-universal this experience is. We then explore the origins of color vision and what evolutionary significance it may have held before getting into the discovery of color vision deficiency and its impact on industry. We close out this colorful episode by chatting about some of the latest developments and products geared towards those with color vision deficiency.

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Hand, foot, and mouth disease (HFMD). The dreaded scourge of daycares, kindergartens, even occasionally college campuses, and the topic of this week’s episode. From the multiple viruses that cause HFMD to the wide array of symptoms (bye bye, fingernails), from the relatively recent discovery of this disease to the ancient origins of all viruses (deep time, y’all), from the changing nature of outbreaks to the development of potential vaccines (fingers crossed) - in this episode we’re going way beyond the basics of hand, foot, and mouth disease. Whether or not you’ve had the pleasure of being up close and personal with this disease, this episode is sure to leave you slightly horrified/mildly impressed by the infectiousness, longevity, resilience, and deep roots of the HFMD viruses.

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Most of us are familiar with asthma. Maybe you have the disease yourself or maybe a friend, family member, or coworker has it. Or maybe you’ve just watched a tv show or movie featuring a character with asthma. However you learned about this disease, you probably still have some lingering questions about it, like “how do inhalers work?”, “what are the different types of asthma?”, “where does the word asthma come from?”, “can other animals get asthma?”, and “can Erin and Erin tell me everything they possibly can about asthma?” The answer to that last question is a resounding yes, and the answers to the others you’ll find in today’s episode, where we take you through the complicated but somehow also straightforward biology of this disease, the long history of asthma peppered with firsthand accounts, and the promising research that may transform the way we live with this disease.

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Our final TPWKY book club selection of the season will test the limits of your imagination by asking you to consider what it might be like to smell the world through the nose of a dog or to see flowers through the ultraviolet vision of a bee. It will make you ponder the tradeoffs inherent in sensory perception and what an animal’s dominant senses can tell us about what is most important to their species. It will have you contemplating what the future holds for sensory research, both in terms of what new senses we might discover as well as the impacts of sensory pollution on an ecosystem. In short, it will change the way you perceive the world. Pulitzer Prize-winning science journalist Ed Yong joins us to chat about his incredible book, An Immense World: How Animal Senses Reveal the Hidden Realms Around Us. Yong, whose other book I Contain Multitudes is another TPWKY favorite, leads us on an expedition beyond the boundaries of human senses as we chat about what an octopus tastes, how the line between communication and perception is blurred in electric fish, the evolutionary arms race between bats and moths, and even the long-standing question of why zebras have stripes. Tune in for the riveting and magical conclusion to this season’s miniseries.

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The CDC’s list of highest priority bioterrorism agents is a short one, with only six pathogens making the cut. Among the more familiar names on the list, such as anthrax, botulism, plague, smallpox, and viral hemorrhagic fevers, is the topic of today’s episode: Francisella tularensis. Unless you’re a hunter or work with small mammals, you may not recognize the name of this pathogen or the disease it causes - tularemia - let alone the characteristics that earned it a place on the CDC’s list. By the end of this episode, though, all that will have changed. Join us as we explore why this pathogen’s brutal biology makes it a force to be reckoned with, how the history of its discovery has surprising origins in the devastating 1906 San Francisco earthquake, and what promises future research may hold for protection against this deadly disease.

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Oh, to taste the food of the past. Strawberry jam made from farm-fresh strawberries. Milk straight from the cow. Cookies baked with freshly churned butter and brown sugar. Because that’s how it was, right? Everything used to be fresher, more pure, unadulterated by preservatives or additives, right? Our latest TPWKY book club pick shows us just how wrong that notion is. Science journalist and Pulitzer Prize-winning author Deborah Blum joins us this week to chat about her book, The Poison Squad, which tells the story of the fight for food safety regulation in the United States at the turn of the 20th century. In our conversation, Blum rips off those rose-tinted nostalgia glasses and reveals that strawberry jam rarely contained strawberries, milk could include a mix of formaldehyde and pond water, butter had borax, and brown sugar was mostly ground up insects. Until one man, chemist Harvey Wiley, stepped up and spearheaded the campaign for food safety legislation, all of these horrific practices of food adulteration were entirely legal. Tune in to learn what Wiley was up against and some of the tactics used in his struggle, including the wild story of the experiment that gave this book its title.

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It’s safe to assume that the vast majority of you have a bottle or blister pack of acetaminophen/paracetamol/Tylenol/Panadol in your home medicine cabinet, and an even vaster majority of you have taken the medicine at some point in your life. After all, acetaminophen/paracetamol is one of the most, if not the most, widely used medications worldwide. Despite its near ubiquity, many unanswered questions remain. How does it actually work? Should safe dosage guidelines be revisited? Why on earth does it have multiple names? And finally, who was responsible for the Tylenol murders in 1982? In this jam-packed episode, we do our best to make sense of the mysteries surrounding this drug, weaving our way from the pharmaceutical nitty gritty of acetaminophen/paracetamol to the bizarre story of its discovery, from the horrific crimes that shocked a nation and revolutionized consumer safety standards to the ongoing discussions of whether we’re under- or overestimating how safe this medication actually is.

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Riots over inoculations. Large-scale quarantines and lockdowns. Criticisms of government action (or inaction) during disease outbreaks. The spread of mis- and disinformation about the safety of immunizations. You may be thinking, “this is a COVID episode, isn’t it?”. Not quite. In this latest installment of the TPWKY book club we’ll be discussing another key period in US history that had profound, long-lasting impacts on public health and access to medical care: the American Revolutionary War, when liberty from smallpox was even more important to the American colonists than independence from Great Britain. Our time travel tour guide is Dr. Andrew Wehrman, Associate Professor of History at Central Michigan University, who joins us to discuss his fascinating book The Contagion of Liberty: The Politics of Smallpox in the American Revolution, published in December 2022. As our conversation reveals, public demand for inoculation was so great that riots were held to protest unequal access, our current lack of universal healthcare systems has incredibly deep roots, and George Washington’s greatest legacy may in fact be his ability to change his mind when presented with new information. With the Fourth of July just one week ago, what better time to consider this fresh perspective on the American fight for independence and freedom from disease.

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In early February and late March of this year, separate outbreaks of Marburg virus were declared in Equatorial Guinea and in the United Republic of Tanzania. For several months, news of these outbreaks and other sporadic cases made headlines globally, as public health officials watched the number of cases and suspected cases climb, calling to mind previous outbreaks of Marburg virus's relative, the deadly Ebola virus. Fortunately, the WHO declared both outbreaks over in early June, but the threat of this hemorrhagic virus remains. In this episode (recorded in April 2023) we explore why the biology Marburg virus makes it such a deadly pathogen, what its evolutionary history and the history of its discovery can tell us about the changing landscape of pathogen spillover, and how the recent outbreaks reveal how much we still don't know about this virus. Tune in for everything you ever wanted to know about Marburg virus and more.

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Are viruses the “great equalizers” that some people claim them to be? Are we all similarly susceptible not only to infection from viruses but also to the consequences from infection? The short answer is no. The longer answer can be found in this week’s book club pick, The Viral Underclass: The Human Toll When Inequality and Disease Collide by Dr. Steven Thrasher. Dr. Thrasher, the inaugural Daniel H. Renberg Chair and Assistant Professor of Journalism at Northwestern University, joins us to discuss how racism, classism, sexism, ableism, stigma, and other forms of oppression intersect to create a viral underclass, a group of individuals that are disproportionately susceptible to and impacted by viruses. Our conversation takes us through several of these vectors of the viral underclass as well as personal stories that illustrate how social and political structures punish certain communities for getting sick while others profit. Part memoir, part academic discussion, part journalism, and entirely groundbreaking, The Viral Underclass is an incredibly timely book that demonstrates the ways that viruses amplify and exacerbate existing inequalities while also underlining how we are truly all in this together. Our interconnectedness means that if one of us is vulnerable to infection, then we all are.

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An entire generation probably first learned the word “mesothelioma” and its link to asbestos from those ubiquitous commercials in the 1990s and 2000s. You know the one: “if you or a loved one has been diagnosed with mesothelioma you may be entitled to financial compensation.” These commercials made it seem like mesothelioma suddenly came out of nowhere. Was this a newly discovered disease? Wasn’t asbestos banned? How did asbestos cause mesothelioma? Heck, what even was asbestos? By seeking to answer all those questions and more, this episode picks up where those commercials left off. We detail how teeny tiny asbestos fibers can wreak immense devastation, untangle the long human history of asbestos products, and assess the current status of this fibrous mineral, which is disappointingly far from banned worldwide. No story of asbestos would be complete without a spotlight on the town of Libby, Montana, where brave crusaders continue to fight against a company whose callous negligence led to injury, death, and widespread environmental contamination. Tune in to find out where salamanders, The Wizard of Oz, Charlemagne, and The River Wild fit into the story of asbestos.

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Where can you find banana-stealing macaques, dumpster-diving bears, flower-destroying gulls, and dangerously-exploding trees all in the same place? In a book by Mary Roach, of course. In this TPWKY book club episode, we’re joined by world’s funniest science writer and award-winning author to chat about her latest book Fuzz: When Nature Breaks the Law, a rollicking tour of the many ways that humans and wildlife clash and the varied attempts to mitigate this conflict. Our conversation carries us across the globe as we discuss why “man-eating cat” is a misnomer and how the Vatican takes pest control very seriously, and through time as we contemplate the changing nature of conservation and the hopeful future of human-wildlife conflict. If you’ve ever wondered about the forensics of wildlife attacks (in other words, what’s going on in the Ponderosa Room?) or whether scarecrows work like they’re supposed to (spoilers, they don’t), then this is the episode for you.

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This just might be our itchiest episode yet, and for that we sincerely apologize. But it might also be one of our most fascinating and fun episodes yet, and for that we are proud. Whether or not you have personal experience with bedbugs, the mere mention of these vampiric critters is often enough to inspire skin-crawling horror in us all. But in this episode, we also make a case for their appreciation. How can you not admire (from a distance, of course), their incredible ability to go for months or even a year without feeding? Or that their saliva contains all kinds of proteins that slow blood clotting or dilate our blood vessels? Or that the ubiquity of these bugs during the Industrial Revolution drove massive changes in furniture design? From the biology of a bedbug bite to the impressively long history of these blood-feeding arthropods, we present the story of bedbugs in more detail than you ever knew you wanted (and trust us, you do).

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Menstruation. Is there any other biological process that is so widely experienced yet is still discussed in hushed tones or with an air of disgust? Period product commercials that never mention menstruation (and what’s with the blue liquid?), sex education classes covering what periods are without advising how to manage them, the endless list of menstruation euphemisms, prominent evolutionary hypotheses dismissing periods as maladaptive, even proposed laws forbidding the discussion of periods in school (looking at you, Florida) - these are just a few examples of the ways that we have been taught to be ashamed or grossed out by a natural biological process. In this TPWKY book club episode, we chat with Dr. Kate Clancy, Professor of Anthropology at the University of Illinois, about her recently published book Period: The Real Story of Menstruation, a compelling must-read that examines both scientific and societal perceptions of periods. Our conversation with Dr. Clancy takes us through the origins of period stigma, the leading hypotheses as to why we get periods, the observed link between the SARS-CoV-2 vaccine and menstruation, the hopeful period future, and so much more. Tune in to learn where a uterus pancake fits into this discussion and stay to have all of your period myths busted.

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Even if you haven’t watched the TV show House MD, you’re probably familiar with the phrase “it’s never lupus”. But have you stopped to consider why it’s never lupus? Or why lupus is so often suspected in the first case? Well, dear listeners, this episode aims to get at the heart of those questions, which is easier said than done. Like many other autoimmune diseases, lupus erythematosus continues to baffle, but we know a lot more now than we used to. In this episode, we take you through that knowledge as best we can and then trace the steps of how we came to first recognize, then describe, and then treat lupus, a journey that takes us through how we learned about autoimmunity in the first place. If you’ve ever been curious about how lupus got its name (wolf bite, anyone?) or what the pregnancy compensation hypothesis could mean for this and other autoimmune diseases, then this is the episode for you.

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In our episode on the bends, you joined us as we explored how low we can go. Now we’re back with a similar invitation: come along to learn how high we can fly (and what happens to our bodies when we get up there). In this very special episode, we examine the short-term effects and potentially deadly consequences of life at great heights and ask how we came to understand the relationship between altitude, oxygen, and health. This journey begins earlier than you may have guessed, back to a time before oxygen was discovered, and winds through unexpected avenues, including misadventures in hot air balloons and early experiments demonstrating the vitality of air, as we trace how the pieces of high altitude physiology were put together. A big part of what makes this episode so very special is our guest, Dr. Jonathan Velotta, Assistant Professor of Evolutionary Biology at the University of Denver, who joins us to chat about some of the incredible ways that humans and other animals have adapted to live at high altitude. Tune in for a bird’s-eye view of what it’s like to have a high life.

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Listeners of this podcast are likely no strangers to the horrifying history of eugenics, a topic that has made an appearance in our episodes on epilepsy, Huntington’s disease, hemophilia, sickle cell anemia, and many others. We have touched on eugenic policies that prohibited marriage, encouraged and permitted forced sterilization, and restricted immigration in the U.S. in the early 20th century. But what we haven’t explored in great depth are the origins of eugenics as well as its disturbing persistence in scientific research today. This week’s TPWKY book club selection, Superior: The Return of Race Science, goes way beyond filling in those gaps, offering a brilliant, disturbing, and much-needed examination of the history and continued practice of race science. In this bonus episode, Angela Saini, award-winning journalist and author of Superior (and many other must-read books), joins us to discuss this history, exploring questions such as “what role did colonialism play in the creation of racial categories?”, “where does the public image makeover of Neanderthals fit into this story?”, “what does race science look like today?”, and “how did race science make an appearance during the COVID pandemic?”. Tune in for a fascinating interview that highlights the need to remain vigilant against the insidious and damaging practice of race science.

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For many of us, our encounters with listeria may not go beyond reading the occasional headline about an outbreak from contaminated hot dogs or listening to our doctor advise us to avoid certain foods while pregnant. But as we explore in this episode, the story of Listeria monocytogenes is more complex, scary, and unexpected than you may have imagined. Join us this episode as we trace the dual-natured and sometimes extremely deadly infections this pathogen can cause, examine how the industrial revolution and cattle movements may have altered the landscape of Listeria monocytogenes, and ask why cell biologists are so enamored with this bacterium. One thing’s for sure: this isn’t your typical food-borne pathogen.

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You may be wondering if there’s a typo in this week’s TPWKY book club selection - The Joy of Sweat? Are we supposed to find joy in this secretion? Shouldn’t it be The Inconvenience of Sweat? Some of you sauna-goers or hot yoga enthusiasts may already welcome sweat (at the right time and place, of course), but I’m guessing there are plenty of you out there that do everything you can to prevent perspiration and the odor that frequently accompanies it. In this bonus episode, Sarah Everts (@saraeverts), author of The Joy of Sweat: The Strange Science of Perspiration and Science Journalism Chair at Carleton University’s School of Journalism, joins us to discuss why we should reconsider our stance on sweat and instead recognize it for the superpower it is. Or at the very least, be grateful that we don’t do what vultures do to cool off. Our conversation covers topics as far-ranging as sweat forensics, the evolutionary significance of body odor, the shameful marketing of early antiperspirants, the wild world of sweat dating, and so much more. Whatever your current feelings towards perspiration, this episode will have you thinking more about sweaty secretions than you ever have before (and enjoying every second of it).

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There is no shortage of ailments that vitamin D has been claimed to prevent or cure - various types of cancers, heart disease, COVID-19, diabetes, an assortment of autoimmune conditions, just to name a few. What is it about this micronutrient that leads people to behold it as a panacea? In this episode, we sift through what we know about the biology of vitamin D, along with what happens when you don’t have enough of it, in an attempt to discern what might be overhype and what might be underhype when it comes to vitamin D and health claims. And there certainly is ample reason for excitement over this micronutrient, as its deep, deep evolutionary history reveals just how many biological processes in which vitamin D is intimately and vitally involved. The consequences of vitamin D deficiency form a large part of its human history, as soaring rates of rickets during the Industrial Revolution drew the interest of researchers intent on pinpointing the cause of this disease. As is typical for this podcast, the more we know, the more questions we have, like “who decided what counts as deficiency?”, “how much vitamin D should people be getting?”, and “what is vitamin D really telling us?”. Tune in for plenty of sunshine, cod liver oil, and drama over vitamin D.

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What do you get when you combine a love of reading with an interest in biology/public health/medical history and a background in podcasting? The TPWKY book club, of course! This season’s miniseries of bonus episodes features interviews with authors of popular science books, covering topics ranging from why sweat matters to the history of food safety, from the menstrual cycle to the persistence of race science and so much more. So dust off that library card, crack open that e-reader, fire up those earbuds, do whatever it takes to get yourself ready for the nerdiest book club yet.

We’re starting off this book club strong with a discussion of Breathless: The Scientific Race to Defeat a Deadly Virus, the latest book by award-winning science writer David Quammen (@DavidQuammen). Breathless recounts the fascinating - and sometimes frightening - story of how scientists sought to uncover the secrets of SARS-CoV-2, the virus that causes COVID. In this interview, Quammen, whose 2012 book Spillover explores the increasing pathogen exchange occurring among humans, wildlife, and domestic animals, shares with us how he decided to write Breathless and why this story of discovery needs to be told. Our conversation takes us into musings over why we saw this pandemic coming yet could not keep it from happening, the controversy over the origins of SARS-CoV-2, and the question of whether future pandemics are preventable or inevitable. Through this discussion, we find that the global response to future pandemics depends just as much on locating the gaps in our knowledge about this virus as it does on applying what we have learned so far. Tune in for all this and more.

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Only our second episode of the season and we’re already getting in over (and inside) our heads with one of the biggest topics we’ve taken on yet: epilepsy. In this episode, we navigate the constantly changing definitions of epilepsy, make our way through the many different types of seizures, and dig into the inner workings of the brain as we attempt to understand the pathophysiology of this disease. And that’s just the biology section! The history of epilepsy proves to be just as intense, as shown by the multitude of meanings this disease has held over thousands of years. The past merges with the present - and maybe the future - when we delve into some of the technologies that have helped us to gain a clearer picture of this disease and may lead to improvements in prevention, detection, and management of seizures in years to come.

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We’re kicking off our sixth season in the same way we ended our fifth: with another headline-making respiratory virus. But as our listeners know, not all respiratory viruses are the same, and it’s often those differences among them that play the biggest role in their spread or the symptoms they cause. This episode, we’re exploring the virus that everyone has been talking about lately. No, not that one. Or that one. The other one. Yes, we’re talking about respiratory syncytial virus, or RSV. For many people, the recent surge in RSV infections that dominated headlines this winter may have been the first time they had heard of this viral infection or realized how deadly it could be. But for others, RSV has long inspired fear and dread. In this episode, we Erins explain why this virus deserves such notoriety, how long we’ve recognized the dangers of infection, and what hope the future may hold for novel RSV treatments or vaccines. If at any point you’ve wondered what all the fuss is about this virus or how to pronounce syncytial, then this is the episode for you!

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Ep 110 Influenza, Take 2: Sitting Ducks; Fowl Play

Over five years ago, on October 31, 2017, the very first episode of This Podcast Will Kill You premiered, an action-packed (and mildly disorganized) tour of the influenza virus and the 1918 flu pandemic. So much has happened since that episode’s release, both within the podcast and in the world of public health, not the least of which is a respiratory virus pandemic. Given this distance from the podcast’s beginning and the added perspective of experiencing a pandemic firsthand, we decided to circle back to where we started by revisiting influenza for our fifth season finale. In this episode, we provide a bird’s eye view of influenza viruses overall, from how they make you sick to the long history of influenza pandemics and where we stand with case numbers in recent years. Then we dig deeper by giving you a different kind of bird’s eye view: a close examination of highly pathogenic avian influenza, especially H5N1. How is this virus different from your standard seasonal influenza strain, where did it come from, and how worried do we need to be? Are we just a bunch of sitting ducks? Tune in to find out.

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Somehow it’s taken us until the penultimate episode to cover this season’s first mosquito-borne virus. But we assure you, this episode is well-worth the wait. Although Chikungunya virus is often lumped in with dengue or Zika, the unique characteristics that distinguish Chikungunya virus from these other arboviruses are just as important to note as the similarities among them. In this episode, we explore these differences and similarities in the biology of Chikungunya virus before reassessing what we thought we knew about the history of this disease, a history that is presently under revision. Finally, we wrap up the episode as we always do, by taking stock of where we stand with Chikungunya virus today. Tune in for a good deal of dengue compare/contrast, a whodunnit (or whichdiseaseisit) in the history of these two diseases, and a frustrating attempt to gather present-day case numbers.

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Although today we tend to think about diseases in terms of signs and symptoms, tests and treatments, that hasn’t always been the case. For much of history, diseases carried with them a deeper meaning beyond the pathophysiological processes leading to their development. A diagnosis was as much about the identity and personality of an individual as it was about the disease itself, and this was especially the case for the topic of today’s episode: gout. But before we get into the tangled history of this “monarch among maladies”, we first break down its biology and possible evolutionary origins. Once we have a solid understanding of this crystalline illness, we turn our attention to the changing perceptions of gout over time and why gout was once a welcomed diagnosis, in sharp contrast with so many other diseases. Finally, we take stock of gout around the world today, no easy feat. Tune in for a fascinating deep dive into this incredibly common but often overlooked illness.

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Over the years of the podcast, we have often struggled with questions of why: why pathogens act the way they do, why certain people get sick while others don’t, or why we know little about some diseases. This episode is no exception - sepsis certainly inspires many “whys”. But for perhaps the first time on the pod, we find ourselves grappling not only with “why?” but also with “what?”. What, indeed, is sepsis? Ask a dozen doctors and you may get a dozen different answers. Our first goal for this episode is to sift through the various definitions of sepsis and what we know about its pathology to get a firm handle on this deadly consequence of infection. We then turn our sights to a thrilling period of sepsis history - Joseph Lister and his carbolic acid spray - before attempting to address the status of sepsis around the world today. By the end of the episode, your picture of sepsis may not be crystal clear, but hopefully the edges are a little less blurry.

And helping us to de-blur the edges of sepsis is the wonderful Katy Grainger, leading sepsis and amputee advocate and on the Board of Directors of Sepsis Alliance, who shares with us her harrowing sepsis experience. You can learn more about Katy’s story and advocacy work by following her on instagram (@katysepsisamputee), TikTok (@katysepsisamputee), Facebook, or by checking out www.sepsis.org.

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Are you in the mood to chat chromosomes, specifically the X chromosome? If so, have we got the perfect episode for you! You may have come across the definition of Turner syndrome as a genetic condition resulting from the partial or complete loss of an X chromosome, but what does that actually mean? What is the X chromosome, what does it do, and why is it so important? We attempt to answer these questions with our exploration into the biology of Turner syndrome before setting our sights on the who’s and when’s of the X chromosome and Turner syndrome. Our path through the history of these bundled packets of genetic material wouldn’t be complete without some fascinating detours, such as an exploration into the inspiring life of Nettie Stevens and the beautiful variations in sex chromosomes found in the animal kingdom. Finally, we wrap up our episode by taking stock of how much progress we’ve made with Turner syndrome treatment and research but also how far we still have to go. Tune in for all this and more!

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We’ve covered measles, we’ve taken on rubella, and now we’re finishing up the classic MMR vaccine by exploring the other M: mumps. To some listeners, mumps may be a painful childhood memory while to others it’s just a letter in a vaccine they were too young to remember getting. But by the end of this episode, we promise that you’ll all be much more familiar with this strange little virus. How does the mumps virus make you sick and give you that classic swollen face look? What is so bad about the mumps that Maurice Hilleman decided to snag a sample from his sick daughter to make a vaccine? Where do we stand with mumps today and what do declining vaccination rates have to do with those not-so-great numbers? Tune in to hear our take on all these questions and many more in this classic TPWKY episode.

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Don your wetsuit, grab your oxygen tank, and securely fasten your mask, because this week we’re going on our deepest dive yet. In this episode, we’re plumbing the depths of decompression sickness, aka the bends, to get a better handle on how gases and pressure can be so very deadly. We start out with a bit of Gases 101, examining how decompression sickness occurs and why it affects your body in the ways it does. Next, we explore the not-so-distant history of this disease, a history that includes far more tales of bridge engineering than it does of SCUBA diving (but just as fascinating). Finally, we rise to the surface, but not too quickly, with a look at decompression sickness around the world today. Tune in to hear the highs, the lows, and everything in between of this industrial era disease, and feel free to leave your decompression schedule at home.

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The story of leptospirosis is chock full of variety. In terms of biology, any number of different Leptospira species and serovars can play a role in infection, and the resulting infection can run from asymptomatic to deadly. As for ecology, virtually any mammalian species can either act as an affected reservoir for the pathogens or fall victim to a deadly infection. The history of leptospirosis takes us across continents and through centuries, illustrating how changes in scientific thought and technology shaped our understanding of this and other zoonotic diseases. And the current status of this One Health disease is no less varied, both in the wide distribution of leptospirosis as well as the vastly differing (but disturbingly high) estimates of annual cases and deaths. In this episode, we do our best to tackle as much of the variety in this neglected disease as we can, from its impact on us and our furry friends, to the classic story of its discovery and the biggest remaining gaps in our knowledge today. Tune in for all this and more!

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“The king of poisons,” “the poison of kings,” “inheritance powder.” As its various nicknames suggest, arsenic’s notoriety largely stems from its use as a murder weapon. But as we explore in this episode, the world of arsenic is much, much bigger than just as a plot device in an Agatha Christie novel, and it remains one of the most important environmental contaminants today. But how exactly does arsenic affect your body? When did people first start to use arsenic and for what purposes? Where does it have the most impact currently? And, of course, why was it so popular as a murder weapon? Tune in to hear the answers to these and many, many more questions about one of the most notorious poisons out there.

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For what was originally going to be our 100th regular season episode, we wanted to turn the vaguely threatening title of our podcast on its head by exploring a topic that’s not about something that can kill you but rather the hows and whys of staying alive, forever. That’s right, this week we’re taking on the immense and amorphous concept of immortality, viewed primarily through the lens of biology. Why don’t humans or any other organisms live forever, evolutionarily speaking? What can the long search for an elixir of life tell us about our future prospects of life without end? How close has current technology brought us to achieving immortality in even the remotest sense of the word? This may not be your typical TPWKY episode, but we promise laughter, trivia, and existential contemplation about the meaning of life, so you’re not gonna want to miss it.

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A little over two years into a pandemic, the last thing you probably want to see is headlines announcing yet another disease spreading across the globe. And yet, here we are. Beginning in May 2022, an increasing number of cases of monkeypox have been reported in many countries around the world, both in places where the monkeypox virus is known to occur as well as places where it had previously never been observed. And although the monkeypox virus itself is not new, some of the ways it is acting during this outbreak are. In this episode, we take you through what we knew about monkeypox before this outbreak began, first by exploring the biology of this poxvirus and how it makes you sick before walking through the history of its discovery and past epidemics. Then we shift our focus to the ongoing outbreak: What is different about the patterns we’re seeing today compared to past outbreaks? How has the virus changed? How exactly is it transmitted? And, a question we haven’t asked in a very long time, how scared do we need to be? Tune in to hear us address these questions and many more about this re-emerging poxvirus.

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We’ve all been there: doubled over in pain as stomach cramps grip your guts; the panicked shuffle to the nearest bathroom; the waves of nausea and chills as you cry out loud, “oh no, what did I eat??”.  At the very least, food poisoning is a humbling experience, but at the worst, it can be absolutely deadly. In this episode, we take a deep dive into one group of pathogens commonly responsible for outbreaks of food-borne illness, the infamous Salmonella. We start first with an exploration into how and why these bacteria make you sick before turning towards the history of these pathogens, a history which includes a brief jaunt through a bizarre story involving a cult, bioterrorism, and a small Oregon town. Finally, we wrap up the episode with a look at Salmonella by the numbers today. You’ll leave this episode brimming with Salmonella knowledge, thinking twice about how well you cook your chicken or wash your veggies, and contemplating how fast you can get your hands on a food thermometer. Trust us - you’re not gonna want to miss this one!

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It’s been years since our first (and, until now, only) vitamin-centric episode on scurvy, and we’re thrilled to be dipping our toes back into these nutritious waters with this episode on folate. Have you ever wondered why folate is important or what the difference is between folate and folic acid? Or maybe you’re curious about this vitamin’s discovery and the impact that fortification programs have had around the world. Look no further - this episode has got all the folate facts you could desire. Tune in to hear how antifolates are used in cancer treatment, where folate got its name, and what a famous savory food spread has to do with the history of this essential vitamin.

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Our snake venom episode last week took us down some fascinating roads, from the pathophysiological effects of these compounds to the snake detection hypothesis and from the development of antivenom to the incidence of snakebite around the world today. But how did we make it through that whole episode without discussing how and why these venoms evolved in the first place? It’s because we were saving it for this one, where we enlisted the expert help of Professor Nick Casewell, Professor of Tropical Disease Biology at the Liverpool School of Tropical Medicine and Director of the Centre for Snakebite Research & Interventions. In this bonus episode, the last in our series for now, Professor Casewell takes us through the remarkable world of snake venom evolution, covering such topics as the genetic basis for venom evolution, how snake venom is related to prey type, why spitting cobras spit, and so much more. Tune in wherever you get your podcasts to gain an even greater appreciation for these venom-producing snakes as well as the brilliant people who research them!

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How do you feel about snakes? Intrigued or terrified? In awe or creeped out? Of course, those aren’t the only options; the sight or thought of a snake can evoke many different emotions, but chances are indifference isn’t one of them. And is it any wonder? Some snakes can produce incredibly potent venoms that can seriously harm or even kill you, a characteristic that likely helped earn them their prominent role in many cultures and religions as a creature or god to be respected, if not feared. In this episode, we take a closer look at the diverse compounds that make up these venoms by exploring how they impact our bodies in the myriad ways they do and the current tools we have to combat their effects. Then we turn to evolution, not of snakes themselves but rather the role snakes may have played in primate evolution (snake detection hypothesis, anyone?) before discussing the historical development of antivenoms. We round out the episode by reviewing the current status of snakebite as a neglected tropical disease and mentioning some very exciting therapies on the horizon. Don’t missssss out on this enlightening envenoming episode today!

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Our tapeworm episode last week mentioned the remarkable finding of tapeworm eggs in a 270 million-year old shark coprolite, that is, fossilized feces. And this certainly wasn’t the first time coprolites have come up on the podcast; we’ve referenced them several times before, mostly when discussing early histories of parasitic worms. But there is so much more to the world of coprolites than just which parasites were found and when. To help us explore all that coprolites can teach us is the world-renowned paleontologist Dr. Karen Chin, Professor at University of Colorado Boulder and Curator of Paleontology at CU-Boulder Museum of Natural History. In this exciting bonus episode, Dr. Chin takes us on a fascinating tour of the what (what are coprolites?), the why (why are they important?), the how (how do feces get preserved?), and the who (who dung it?) of these incredible trace fossils.

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We can probably all agree that the thought of a tapeworm hiding out in your gut is not a pleasant one. Nor is the image of tapeworm larvae forming cysts in your muscles, organs, and even your brain. So listening to an entire episode on these parasitic worms? We understand why that may seem like a bit much. But trust us, the world of these worms is too fascinating and important to be missed. In this episode, we break down the biology of the tapeworm species that commonly infect humans and discuss the role of these parasites as a leading infectious cause of epilepsy around the world. Then we venture into the ancient and not-so-ancient history of these tapeworms, starting at “who was infected first - the human or the pig?” and ending with “what was the tapeworm diet all about anyway?” Finally, we wrap up the episode with a look at tapeworm by the numbers today. Tune in wherever you get your podcasts!

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The classic tale of epidemiology almost always begins with public health hero John Snow traipsing all over London to track down the source of the 1854 cholera epidemic, ultimately identified as the Broad Street Pump. While Snow’s famous endeavor earned him the title “the father of field epidemiology”, it turns out, as it so often does, that the real story is more complicated. In this bonus episode, we look beyond John Snow to explore the deeper roots of epidemiology with Dr. Jim Downs, Gilder Lehrman-National Endowment for the Humanities Professor of Civil War Era Studies and History at Gettysburg College. Dr. Downs’ latest book, Maladies of Empire: How Colonialism, Slavery, and War Transformed Medicine, reexamines the historical drivers that led physicians to turn their attentions towards the spread of disease in populations. Where does John Snow fit into this revised story of epidemiology? Tune in to find out.

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[CW: Firsthand account includes description of the death of an infant. Skip approximately first 3 min to avoid.]

What comes to mind when you hear the word tetanus? For many people, it’s probably the horrible thought of stepping on a rusty nail or the every-so-often Tdap booster you get at your doctor’s office. Thanks to the wide availability of this incredibly effective vaccine, not many of us have an image of what an infection with tetanus actually looks like or how deadly it can be. But that’s not the case everywhere, especially in places with limited access to these life-saving vaccines. In this episode, we take you through the biology of the spore-forming, soil-dwelling, obligately anaerobic, Gram positive Clostridium tetani and the powerful paralytic neurotoxins it produces. We then venture into the history of this pathogen, a history that includes a tour through early medical texts and a discussion of the origins of epidemiology as viewed through the context of neonatal tetanus in the American South. We round out the episode by reviewing where tetanus still poses a substantial threat today and highlighting some very exciting ways this deadly pathogen may be used to treat cancer! Tune in to gain a newfound respect for this incredible microbe!

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Chlamydia trachomatis may have stolen the show in our last episode, but there are many other Chlamydiae that deserve some time under the spotlight. In this bonus episode, Dr. Martina Jelocnik (@MartinaJelocnik) and Dr. Sam Phillips (@Sam_Phillips_83) from the University of the Sunshine Coast in Queensland, Australia, join us to chat about some of these other Chlamydia species and the effects they have on wildlife and domestic animals. Curious about koalas and chlamydia? This episode will bring you up to speed on how these charismatic creatures are impacted by Chlamydia pecorum as well as current research efforts towards a vaccine to combat this pathogen. Wondering about psittacosis and birds? Or livestock and Chlamydiae? We’ve got you covered there as well! Tune in this week for a truly fascinating deep dive into the wide world of these pathogens!

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With this episode, you’re getting much more than you probably bargained for, thanks to the quirks of Chlamydia trachomatis. This small but mighty bacterium can cause a number of different conditions throughout your body, most notably in your eyes and your genital tract, and the resulting infections, if left untreated, can lead to substantial and permanent damage. In this episode, we focus on the two most common forms of chlamydia infection, trachoma (eyes) and chlamydia (genital tract), and discuss the similar pathway through which this bacterium leads to these distinct diseases. While the biology of trachoma and chlamydia may be similar, the history of these two infections could not be more distinct. Tune in to hear what ancient medical texts have to say about trachoma, how surprisingly recently chlamydia was recognized as an STI, and where we stand with these two incredibly common infections today!

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[This episode is a re-release of Ep 27 Vaccines Part 2: Have you thanked your immune system lately?, originally published May 21, 2019]

Were you stoked about the history and biology of vaccines we covered in part 1, but left with even more questions? Were you really hoping to hear us talk about anti-vaccine sentiment and address misconceptions about vaccines in detail? Did you want even more expert guest insight?! Well then do we have the episode for you! Today, we delve into the history of the “anti-vaccine movement” which, spoiler alert, is nothing new. With the help of Dr. Peter Hotez, Dean of the National School of Tropical Medicine at Baylor College of Medicine in Houston and Co-director of the Texas Children’s Hospital Center for Vaccine Development we address some of the most common concerns and questions that arise about vaccines, their safety, and their efficacy. And finally, we hear from Bill Nye The Science Guy about dealing with the challenges of science communication in the modern world when diseases spread as fast as fake news headlines. Y’all. This is the episode you’ve been waiting for.

 You can follow Dr. Peter Hotez on twitter @PeterHotez and check out his book “Vaccines Did Not Cause Rachel’s Autism” 

And you can listen to “Science Rules!” the new podcast from Bill Nye the Science Guy, available now on stitcher https://www.stitcher.com/podcast/stitcher/science-rules-with-bill-nye or wherever you are listening to this podcast!

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[This episode is a re-release of Ep 26 Vaccines Part 1: Let's hear it for Maurice, originally published May 14, 2019]

The wait is finally over: this week we are very excited to bring you the episode we’ve been teasing for weeks: vaccines! This week and next (you don’t have to wait a full two weeks for the next episode!), we are presenting a two-part series on vaccines. In today’s episode, we dive deep into the biology of vaccines, from how they stimulate your (amazing) immune system to protect you, to how they make you into an almost-superhero, shielding the innocents around you from deadly infections. We take you back hundreds, nay, thousands of years to when something akin to vaccination first began, and then we walk along the long road of vaccine development to see just how massive an impact vaccines have had on the modern world. The best part? We are joined by not one, but two experts from the Bill and Melinda Gates Foundation. Dr. Gail Rodgers and Dr. Padmini Srikantiah explain the process of vaccine development, highlight the challenges of vaccine deployment, and shine a hopeful light on the future of vaccines. And be sure to tune in next week for part 2 where we’ll focus on vaccine hesitancy and address common misconceptions surrounding vaccines in even more depth.

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While last week’s episode covered ample ground when it came to lightning strikes, there is so much more to the world of electricity left to explore. Fortunately, there’s a bonus episode for that! This week, we’re joined by a familiar voice, Dr. Timothy Jorgensen, whose previous appearance on the podcast (see Ep 53 Radiation: X-Ray Marks the Spot) helped to lay out the basics of radiation. In this bonus episode, Dr. Jorgensen, Professor of Radiation Medicine and Director of the Health Physics Graduate Program at Georgetown University, returns to the pod to help us dig deeper into the vast topic of electricity. His latest popular science book, Spark: The Life of Electricity and the Electricity of Life, gives us much to talk about, from how electricity works to the difference between direct and alternating current, from electric fish to ECT, and beyond. As an accomplished science writer, Dr. Jorgensen also shares some insights into using storytelling as a teaching tool and advice for those who may want to become better science communicators themselves. Tune in wherever you get your podcasts!

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In last week’s episode, we explored the mysterious world of multiple sclerosis (MS) and the ongoing quest to determine what causes this autoimmune disease. While it’s likely that no one single factor leads to the development of MS, the Epstein-Barr virus (EBV) has long been suspected to play a role in this and many other autoimmune diseases and has also been shown to be involved in several cancers. But why? How is this virus implicated in so many diseases? How does it infect us? What does it do once it’s in our bodies? Dr. Micah Luftig, Associate Professor and Vice Chair in the Department of Molecular Genetics and Microbiology at Duke University, helps to answer these questions and many more about this surprising virus. Not only does Dr. Luftig share his expert knowledge in all things EBV in this interview, he also sheds some light on what a career in academia is like and drops some great advice on how to feel out whether a research career might be right for you. Tune in wherever you get your podcasts!

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We ended our myxoma virus episode on a bit of a cliffhanger, briefly alluding to the emergence of another deadly rabbit virus on the global scene. In this follow-up bonus episode, we take a closer look at this recent arrival, rabbit hemorrhagic disease virus (RHDV), and what its rapid spread around the world has meant for both invasive European rabbits in Australia as well as native rabbit species around the world. Dr. Robyn Hall (@Virologica), veterinary virologist, epidemiologist, and Team Leader of the Rabbit Biocontrol Team at CSIRO in Australia, walks us through how this virus earned the nickname “bunny Ebola”, where it seems to be having the most impact, and what the sudden appearance of a new type of RHDV has taught us about viral evolution and ecological cascades. Then, once we fill up on RHDV facts, we talk favorite viruses, life as a veterinary virologist, and so much more! Tune in wherever you get your podcasts. And check out our website for links to where you can learn more about this fascinating and deadly virus.

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Our episode last week ended on a hopeful note, a rare occurrence for this podcast, and it was due in large part to the incredible decline in reported cases of human African trypanosomiasis (HAT) over the past decade. In this bonus episode, we explore one of the major reasons behind this drop in HAT: the new medication fexinidazole, developed through a partnership between the Drugs for Neglected Diseases initiative (DNDi), a non-profit organization dedicated to developing new treatments for neglected diseases and Sanofi, a French healthcare company. We are thrilled to be joined by two researchers from DNDi, Dr. Nathalie Strub-Wourgaft and Dr. Wilfried Mutombo Kalonji, who share their insights into the challenges associated with bringing a medication all the way from its development stage, to testing it in the field, and finally ensuring that access is provided for those who need it most. We also chat about how this treatment works, the impact that COVID-19 has had on screening efforts for sleeping sickness, the lessons learned from fexinidazole’s development, and so much more. Tune in wherever you get your podcasts! And when you’re finished with the ep, check out this beautiful video from DNDi chronicling the story of fexinidazole: A doctor’s dream: A pill for sleeping sickness.

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Blood tests and liver function results can only tell us part of the story when it comes to the impact that hepatitis B has on people living with the virus. Far too often overlooked is how stigma and discrimination, which we only briefly touched upon in our last episode, contribute to the substantial global burden of disease. In this bonus episode, Dr. Chari Cohen, Senior Vice President of the Hepatitis B Foundation, comes on the pod to chat about the different forms stigma and discrimination can take, how we can get a better sense of their impact, and the key tools in the fight against them. We also seized this opportunity to pick Dr. Cohen’s brain about what it’s like to run a public health non-profit, how much of the job is accurately reflected in the job title, and advice for someone who might be interested in pursuing a career in public health.

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This week, we’re dipping a toe back into the vast waters of hepatitis viruses, this time with a focus on hepatitis B. The hepatitis B virus, though second to be named, was first to be discovered, and effective vaccines and treatments have been available for decades. Yet the global prevalence of this virus remains staggering, with nearly 300 million people chronically infected and 1.5 million new infections annually. So what’s going on? In this episode, we weave our way through the complicated biology of this virus and its deadly potential, the strange history of its identification that shows that you don't have to be looking for something to find it, and the current status of this virus that underlines how safe, effective tools for disease prevention are only as good as our delivery infrastructure. We are also so excited to be joined by Dr. Su Wang, Medical Director for the Center for Asian Health & Viral Hepatitis Programs at the Cooperman Barnabas Medical Center and outgoing President of the World Hepatitis Alliance.

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In this week’s episode, we cover a bacterium whose recent emergence and rapid spread has been largely an epidemic of our own making. Clostridium difficile isn’t your typical pathogen - in many cases it’s not even considered a pathogen, just a normal member of our gut microbiota. But when something disrupts our gut microbiota, like antibiotics, C. difficile is given the freedom to spread its wings, wreaking deadly havoc on our bodies especially when it refuses to leave. We explore the characteristics of this bacterium that make it such a terrifying public health threat, delve into its recent-but-not-as-recent-as-you-might-think history, and chat about the current status of C. diff before asking the question, “what can poo do for you?” That’s right, we’re taking this opportunity to talk about one of our all-time favorite medical interventions, fecal microbiota transplantation. Helping us navigate the ins and outs of fecal transplants is Dr. Majdi Osman, Chief Medical Officer at OpenBiome, a nonprofit stool bank that aims to expand access to safe fecal microbiota transplantation and fund research into the human microbiome. By the end of this episode, we think you’ll find yourself in awe at the healing powers of poop.

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We’re back with our first episode of Season 5, and we’re starting off with a bang! Epidemic typhus, that friend of war and famine, may have caused more wartime deaths than all battles combined, and though it may seem like a disease relegated to the past, typhus only needs a minor disruption to turn it into a scourge of the present. In this epic season opener, we turn our sights to the louse-transmitted Rickettsia prowazekii, first diving into the strange and terrible biology of this bacterium before exploring the deep history of this tiny but mighty pathogen. The vast story of typhus takes us on a journey on a ‘coffin ship’ of the Great Irish Famine, through musings of the origins of human body and head lice, to German-occupied Poland during WWII with tales of vaccine sabotage and lice feeding, and finally to the present day, where we discuss the very real threat that epidemic typhus continues to pose. Check out this episode for all you ever wanted to know about epidemic typhus and more!

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It’s the summer of 1999 in New York City, and everyone's looking towards the future, towards millennium parties and potential Y2K catastrophes. But if they turned their eyes to the streets around and skies above, they might have seen something else on the horizon, something much more real and alarming than a Y2K glitch: the arrival of West Nile virus. In this episode, we take a close look at the virus whose recent emergence in the Western Hemisphere serves as a crucial reminder of how pathogens know no political boundaries and how working across disciplines is the only way to effectively control and prevent disease outbreaks. We are also so excited to be joined by Dr. Sarah Wheeler, Biologist at Sacramento-Yolo Mosquito and Vector Control District, who talks us through the ecology of this mosquito-borne disease and shares the birds-eye view of the situation in North America. Last but certainly not least, we round out this episode with a delightful and informative song about West Nile virus: West Nile Story by MC Bugg-Z and the Fairfax County Health Department. Check out this action-packed episode wherever you get your podcasts!

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Twenty years ago this month, letters containing Bacillus anthracis spores were mailed to various politicians and news media offices in the US, resulting in illness, death, and a widespread fear that transformed anthrax from an agricultural disease or occupational hazard into a potential weapon of bioterrorism. In this episode, we explore the many dimensions of anthrax, from the different ways B. anthracis can cause disease to the incredibly long and varied history of the pathogen, a history of which bioterrorism is only a very recent part. Adding to anthrax’s multifaceted nature is the fact that B. anthracis is an environmental pathogen, one that can greatly impact livestock and wild animals, which requires collaboration across fields to effectively identify and control anthrax outbreaks. To help us explore this pathogen from a One Health perspective, we were so thrilled to chat with Dr. Johanna Salzer, Veterinary Medical Officer in the Bacterial Special Pathogens Branch at the US Centers for Disease Control and Prevention, who filled us in on the veterinary side of anthrax, and Morgan Walker, spatial epidemiologist at the University of Florida, who talked us through the environmental factors that affect B. anthracis distribution and emergence. Tune in for a much more than surface-level look at this spore-forming pathogen.

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A nighttime “kiss” from a bug that casts a curse on its recipient in the form of a lifelong, and possibly fatal, illness. No, this isn’t some half-remembered fairy tale. It’s the true story of Chagas disease, caused by the parasite Trypanosoma cruzi and transmitted by many species of triatomines (aka kissing bugs). In this episode, we take you through the utterly complicated biology of Chagas disease in its acute and chronic forms, the surprising evolutionary and historical background of this parasite and the scientist for whom it’s named, and finally the grim reality that is the global status of Chagas disease today. 

The dizzying ecological complexity and pathophysiological mystery of this disease makes it a challenge to study, and the lack of funding only compounds the issue; Chagas disease bears the dubious distinction of the most neglected of all the neglected tropical diseases. In spite of this, many people are dedicated to easing the global burden of Chagas disease, and we were delighted to interview two of these Chagas champions for this episode. Daisy Hernandez, Associate Professor at Miami University, joins us to discuss the inspiration for her recent book The Kissing Bug: A True Story of a Family, an Insect, and a Nation’s Neglect of a Deadly Disease, and Dr. Sarah Hamer, Associate Professor at Texas A&M University, delves into the ecological aspects of this disease and shares the incredible community science program that raises awareness about T. cruzi and the bugs that transmit it.

To learn more, check out the links below:

Daisy Hernandez: website, Twitter (@daisyhernandez), Instagram (@iamdazeher), Facebook 

Dr. Sarah Hamer: lab website, lab Twitter (@hamer_lab), Community Science Program

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“Let’s do Bartonella next,” we said. “It’ll be straightforward and fun,” we promised ourselves. Turns out we were half right. In this fun but not quite straightforward episode, we tackle not one, not two, but three different species of Bartonella bacteria that can cause disease in humans: Bartonella bacilliformis (Carrión’s disease), B. quintana (trench fever), B. henselae (cat scratch disease). Essentially, we’re giving you three mini-turned-maxisodes for the price of one! For each pathogen, we review its surprisingly strange biology, take a brief tour of its history, and wrap up with a look at its current status across the globe, comparing and contrasting along the way. By the end of this ride, you’ll be bursting with Bartonella trivia, in awe of dental pulp, and scratching your head about the transmission of cat scratch fever.

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Celebration wasn’t the only thing in the air in Philadelphia in July of 1976. Over the course of several days during the 58th Annual Convention of the American Legion, a killer mist spewed out of the air conditioning units throughout the building and into the sidewalks nearby. The result was a large outbreak of unexplained febrile pneumonia, often fatal, that would acquire the name Legionnaires’ Disease. What was causing this terrifying disease and how could it be stopped? In this episode, we walk through the massive investigation into this outbreak that would lead to the discovery of the causative agent, Legionella pneumophila, and explore the biology of this mysterious pathogen. We wrap up the episode with a look at the current status of Legionnaires’ Disease and a potentially grim forecast for its prevalence as the world slowly gets back to normal.

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Over the past year and a half, we have learned so much about this virus, but there is still more to know. There always will be. We have seen the widespread impacts that the pandemic has had on all facets of society, but there is still more to see. There always will be. The COVID-19 pandemic is not over, and its effects will continue to be felt for years to come. What can we expect in a post-pandemic future? Frankly, no one knows. But we can make some guesses based on what we have already seen. Throughout the COVID-19 pandemic, one of our best reference points for comparison has been, of course, the deadly and devastating 1918 influenza pandemic. What can that pandemic tell us about our own uncertain future, and where do comparisons simply fall short? Did the lessons learned from the 1918 pandemic change the course of COVID-19? Or were we doomed to repeat history? To help us look forward by looking back, we are so excited to be joined by John Barry, award-winning and New York Times best-selling author of books such as The Great Influenza: The story of the deadliest pandemic in history (interview recorded May 25, 2021).

This marks the tentative final episode in our Anatomy of a Pandemic series on the COVID-19 pandemic. There is still more ground to cover (there always will be), and it’s entirely possible we’ll produce additional episodes in the future, but this is it for now. Thank you to everyone who has been interviewed, who has sent in their firsthand account, and who has listened. We appreciate all of you so very much.

To wrap up this episode as we always do, we discuss the top five things we learned from our expert. To help you get a better idea of the topics covered in this episode, we’ve listed the questions below: 

1. Can you remind us of some of the similarities as well as some of the differences between the COVID-19 pandemic and the 1918 influenza pandemic?
2. The COVID-19 pandemic has been highly politicized, both in the US and elsewhere. Did we see a similar intersection of politics and public health in 1918, and if so, how did that affect both the way that pandemic played out as well as the aftermath?
3. You wrote that the single most important thing for our society and our governments to do in this pandemic was to tell the truth. How did countries fail to tell the truth in 1918? And how would you rate our honesty during this present pandemic?
4. How do today’s methods of science communication differ from the ways the public got their public health information back in 1918? Was there a similar issue with rampant disinformation campaigns?
5. How did the 1918 influenza affect the public health infrastructure in the US? Did it change the general perception of the role of public health?
6. During the 1918 pandemic did we see countries working together to try and solve the influenza crisis, or did we see intense nationalism due to the ongoing war?
7. After the 1918 pandemic came the Roaring Twenties, with its dramatic lifestyle change and economic growth. Could you talk about what this period looked like and how much of it came as a reaction to the end of the 1918 influenza pandemic and WWI? 
8. How long did the 1918 pandemic live in our collective consciousness as a vivid reality? Given its scale and duration, do you think this pandemic will live in our collective consciousness more vividly?
9. Can you talk about some of the limitations in applying lessons learned from the 1918 influenza pandemic to today’s reality?
10. What are some things that you hope we keep from this pandemic, either personally or as a society?

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Every summer, when the warm weather rolls around and the local ponds and lakes heat up enough for a tempting dip, remember that there may be something else lurking in those waters besides the people looking to cool off. Naegleria fowleri, the topic of today’s episode, makes its home in warm, fresh waters, and that’s mostly where it stays, until a chance encounter between human and amoeba introduces it to a new locale: the brain. In this episode, we explore the brutal biology of the so-called ‘brain-eating amoeba’, walk through its recent but global history, and discuss the possible future of this pathogen, both good (e.g. treatments, awareness) and bad (e.g. climate change, land-use change). 

Even though this is a very rare disease, its deadly potential is deeply felt by those impacted by it. We are very grateful to Dr. Sandra Gompf, who shares her story of how her son Philip’s fatal encounter with Naegleria fowleri led her to create Amoeba Season, a Philip T Gompf Memorial Fund for Infectious Disease Research project. You can learn more about Dr. Gompf’s story on her website, amoeba-season.com, where you can also find many helpful links for raising awareness, fact sheets on amoebic meningitis, and a wonderful set of resources for healthcare professionals. As Dr. Gompf says, amoebic meningitis is 99% fatal but 100% preventable, and the best method of prevention is knowledge - Amoeba Season is a great place to start.

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The COVID-19 pandemic has touched all of our lives in incredibly varied ways, with no two experiences exactly alike. Despite this, we all probably share the same thought: how can we stop this from happening again? In this episode of our Anatomy of a Pandemic series, we ask that question in the context of wildlife conservation. Why is protecting biodiversity synonymous with protecting our own health? If spillover events themselves are inevitable, how can we limit the likelihood that they will become epidemics or pandemics? Where do commercial wildlife markets and subsistence hunting fit into the equation? To help us answer these questions and more, we are thrilled to be joined by Dr. Chris Walzer, Executive Director of Health at the Wildlife Conservation Society (interview recorded April 6, 2021). And for more information on the topics discussed, check out the WCS’s COVID-19 News and Information page and read a recent Op-Ed piece by Dr. Susan Lieberman and Dr. Christian Walzer about why biodiversity is crucial for preventing pandemics. 

As always, we wrap up the episode by discussing the top five things we learned from our expert. To help you get a better idea of the topics covered in this episode, we’ve listed the questions below:

1. Now that we are over a year into this pandemic, what do we know about the sequence of events that led to this pandemic? 
2. People have been studying spillovers and the emergence of novel viruses for a long time and have been saying that a pandemic like this was inevitable. So what did we do wrong on a national or international level?
3. What things did we do right, or what things did we adequately prepare for during this pandemic? 
4. What are the ways in which we’ve made scientific progress or the ways in which the world has fundamentally changed that have allowed this pandemic to play out differently than it could have 20 years ago? 
5. Can you talk us through some of the nuance in the interactions between commercial wildlife markets, spillover events, and wildlife hunting for subsistence purposes?
6. How predictable are spillover events themselves? Or perhaps, how predictable are the scenarios that would increase risks for spillover and how predictable are the events that follow?
7. Since another spillover event could happen at almost any time, what measures do we have in place to prevent these events from turning into another pandemic? Where does wildlife and forest conservation fit into this equation? 
8. Pandemic preparedness and pandemic response are two different things. How do these two aspects of dealing with a pandemic differ and who is involved in each of these efforts?
9. What are people who study this the most concerned about when it comes to the next pandemic? What are the areas in which we still have big improvements to make in how we prepare for or predict or try to prevent pandemics based on what we’ve learned during this one?
10. What do you hope we keep or learn from this pandemic, either personally or as a society?

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A fluffy white fungus and a little brown bat. A deafening silence and an uncertain future. In this episode, we explore one of the most devastating wildlife diseases in recent times, white-nose syndrome. Since its debut in North America in 2006, this fungal pathogen has spread across much of the continent, leaving millions of dead bats in its wake. Why is it so deadly? Which bats are at risk? Where did it come from? And most importantly, what can we do about it? We attempt to answer these questions and more about this pernicious pathogen, and we are so delighted to be joined by Dr. Winifred Frick, Chief Scientist at Bat Conservation International and Associate Research Professor at UC Santa Cruz, who helps us take a closer look at the ecology and impact of this disease on North American bat populations.

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This pandemic has certainly taken its toll on all of us, but one group that has been particularly hard hit are those who have been on the front lines, continuing to take care of patients even when PPE was running low or nonexistent, even when there were no more ICU beds available. During both non-pandemic and pandemic times, physicians and other healthcare workers experience a tremendous deal of stress and pressure that can lead to depression, isolation, anxiety, moral injury, and other mental health issues. In this episode of our Anatomy of a Pandemic series, we seek to understand the factors contributing to the prevalence of these mental health issues among healthcare workers, the stigma that often prevents the seeking of treatment, the role that the COVID-19 pandemic has played in exacerbating these issues, and the ways in which the medical system has done or can do better. We are very excited to be joined by Michael Myers, MD (interview recorded March 29, 2021), psychiatrist and Professor of Clinical Psychiatry at SUNY-Downstate Health Sciences University in Brooklyn, NY and author of several books, including his latest, Becoming a Doctors’ Doctor: A Memoir.

As always, we wrap up the episode by discussing the top five things we learned from our expert. To help you get a better idea of the topics covered in this episode, we’ve listed the questions below:

1. How did you become interested in the field of physician mental health, and what made you choose to pursue it?
2. Can you talk us through some of the challenges healthcare workers face and what impact they have on their mental health? Does this field experience things such as depression, anxiety, substance abuse, and suicide at higher rates than the general public?
3. What does the stigma surrounding mental illness look like in the medical field and how does it contribute to the high rate of mental health issues in healthcare workers?
4. Can you talk a bit about where these mental health issues among healthcare workers originate and how each step of medical training and beyond contributes to the problem?
5. How much of this is a problem unique to the US and how much of it is universal?
6. What are some of those changes you have seen throughout your thirty-five year career as a psychiatrist primarily treating other physicians? How have we gotten better, and what are the areas in which we have failed to make improvements?
7. How do these public health crises, especially COVID-19, amplify the issues that physicians are already facing in terms of mental health?
8. Can you talk a bit about the “healthcare heroes” narrative and how damaging it can be?
9. What is some of the fallout you think we can expect to see in the long-term from the COVID-19 pandemic?
10. As family members or friends or partners of healthcare workers, what are worrying signs that we can look out for? How do we recognize these signs in ourselves as well?
11. For those who maybe have friends or partners or family members who are frontline health workers, what are some of the ways in which we can help and provide meaningful support during these times as well as in non pandemic times?
12. What do you feel are the biggest failings of the medical system in terms of emotional and mental health support for those in medicine? How can we begin to change things? What role should medical school play? Hospitals? Other physicians?

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The COVID-19 pandemic has disproportionately impacted racial and ethnic minorities, especially here in the United States. Higher infection, hospitalization, and death rates due to COVID-19 have been observed for historically marginalized groups, and the harmful effects stem beyond those relating to health, with higher unemployment and food and housing insecurity also reported. Yet these disparities did not emerge anew from this current pandemic; rather, this pandemic has served to amplify existing structural inequalities in the healthcare, educational, legal, and housing systems, among others. In this episode of our Anatomy of a Pandemic series, we explore the deeply entrenched roots of racial disparities in the US, how our narrow focus on outcomes often fails to capture the complex causes of inequalities, and ways in which we can begin to work towards health equity in this country. We are so thrilled to be joined by Harriet Washington (@haw95) (interview recorded March 10, 2021), writer and medical ethicist, whose groundbreaking work on this subject through books such as Medical Apartheid, A Terrible Thing to Waste, Carte Blanche, and others has led to much-deserved critical acclaim.

As always, we wrap up the episode by discussing the top five things we learned from our expert. To help you get a better idea of the topics covered in this episode, we’ve listed the questions below:

1. Can you tell us a bit about your new book, Carte Blanche: The Erosion of Medical Consent, and what inspired you to write it?
2. Although health disparities have been around forever, it was only within the last few decades that the term itself was coined, and it’s often only vaguely defined. Would you mind describing what we mean when we talk about health disparities?
3. Can you talk a bit about how it’s not just being able to go to a doctor or afford a doctor, but how things like access to education, chronic stress, and environmental justice interact with and compound each other when it comes to health disparities?
4. What are some of the different ways that we measure health disparities? 
5. Can you talk about why it is important to understand the context of these disparate outcomes? 
6. Can you talk about the disproportionate impact that COVID-19 has had on communities that were already facing significant barriers to healthcare?
7. How has the narrative of ‘race-based medicine’ shown up in discussions of the disproportionate impact of COVID-19 on certain groups of people?
8. How can we increase health equity in this country? What can we do at an individual level to help, and what are some policies at the state or national level that could help narrow this gap?
9. How can the medical establishment work to earn back the trust of these communities that we have historically disenfranchised (and in many ways continue to disenfranchise) when it comes to health?

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Of the many topics our podcast has covered in the past, from smallpox to scurvy, vaccines to birth control and beyond, one factor has linked nearly all of them: HeLa cells. These cells and the woman from whom they were taken have often remained behind the scenes in the coverage of these topics, but they have nevertheless been absolutely fundamental in the development of technologies, the advancement of knowledge, and the discussions of ethics, ownership, and informed consent. In this week’s episode, we want to do more than acknowledge the contribution of Henrietta Lacks and her cells to the field of biomedical science. We want to explore what it is about HeLa cells and other cell lines that makes them ‘immortal’. We want to learn what Henrietta was like as a person. We want to ask how it was possible for her cells to be taken from her without her consent or knowledge. And we want to share the tremendous impact Henrietta and her cells have made and continue to make on our world in so many ways.

For more information about the Henrietta Lacks Foundation, check out the website.

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We’re over a year into the COVID-19 pandemic, and our understanding of this virus and the disease it causes has grown immensely. And while we’ve learned so much about the spectrum of disease severity, the wide array of symptoms, and the effectiveness of various treatments, there is still so much we are discovering about this illness. In this installment of our Anatomy of a Pandemic series covering the COVID-19 pandemic, we review what we currently know about the disease caused by the SARS-CoV-2 virus as well as emerging questions such as what exactly is long COVID or how well do vaccines work against the new variants? To take us through this massive topic, we enlisted the help of two experts, Dr. Krutika Kuppalli (@KrutikaKuppalli), infectious diseases physician and assistant professor at the Medical University of South Carolina (also featured in Ch. 3: Control of this series), and Dr. Jason Kindrachuk (@KindrachukJason), assistant professor and Canada research chair in molecular pathogenesis and emerging viruses at the University of Manitoba (interview recorded March 16, 2021). As always, we wrap up the episode by discussing the top five things we learned from our experts. To help you get a better idea of the topics covered in this episode, we’ve listed the questions below:

1. How much does the infectious dose, or the amount of virus a person is exposed to, play a role in whether they will get the disease and/or how severe the disease might be?
2. How soon after being exposed does someone become infectious and how does that infectivity change over the course of infection?
3. How much does infectiousness or viral shedding vary across disease severity? Are people who are severely infected more contagious than those who are asymptomatic?
4. Could you walk us through the spectrum of COVID-19 in terms of symptoms or clinical observations, touching on first asymptomatic, then mild, then moderate or severe cases? What proportion of cases are severe vs mild vs asymptomatic?
5. How much do symptoms or the general course of disease vary from person to person? How predictable is this virus?
6. Can you talk about some of the lingering effects of infection and how frequently long COVID seems to occur?
7. How has our estimate of the case fatality rate changed over this pandemic?
8. Can you talk about some of the risk factors that seem to be associated with severe infections? Is there any link between blood type and risk of infection?
9. What do we know about pregnancy and infection with COVID-19? Do risks regarding pregnancy vary depending on when during pregnancy someone may be exposed or infected? 
10. What do we know about the duration or nature of immunity and the risk of reinfection?
11. How has treatment for COVID-19 cases changed throughout this pandemic? Are we any better at treating patients with severe cases now than we were eight or so months ago?
12. What do we know at this point about the vaccine candidates in terms of their effectiveness against new variants that have emerged? What does it mean if these vaccines are slightly less effective against some variants than others?
13. What do the latest studies show about vaccines preventing asymptomatic as well as symptomatic infection?
14. What is something you hope to take away from this pandemic, either on a personal level or as a society?

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From the first skin grafts to the future of 3D printed organs, the science of organ transplantation has always seemed like something out of a sci-fi novel. How on earth can an organ from one person be removed and successfully placed into another person? Who first attempted such a monumental feat, and how long did it take for trial and error to become trial and success? Our episode this week seeks to answer these questions and so many more as we tackle the massive topic of organ transplantation. We begin by examining the immunological nitty gritty of transplant science and follow that up with the long and storied history of transplants. We round things out with a look at the numbers, which show the unfortunate reality that demand far outpaces availability, a reality that may soon be improved with innovative approaches towards bioengineering. And we are so excited to be joined by two fantastic guests, Carol Offen and Dr. Elizabeth (Betsy) Crais, who share their stories of what it’s like to donate or receive a kidney. 

Carol, who is a NKF Kidney Advocacy Committee member, has a great website that includes many resources where you can learn more about kidney donation as well as keep an eye out for Carol and Betsy’s book, The Greatest Gift: The Insider’s Guide to Living Kidney Donation. You can also follow Carol on Twitter (@CarolOffen) and through heradvocacy page on Facebook. We will also post additional links for where to learn more about organ donation and advocacy work on our website.

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The fourteenth installment of our Anatomy of a Pandemic series on COVID-19 dives into what we’ve learned about SARS-CoV-2, the virus that causes COVID-19. Curious about the new strains or variants making headlines lately? Or how exactly tests for COVID-19 actually work? Or perhaps you’ve been wondering about the different routes of transmission that this virus uses. Whatever your virology question, we’ve (hopefully) got you covered. We were fortunate enough to interview virologist Dr. Angela Rasmussen, affiliate at the Georgetown Center for Global Health Science and Security, and whom you may remember from our earlier episode on the virology of SARS-CoV-2, which we released all the way back in March 2020. Dr. Rasmussen was kind enough to sit back down with us to answer all of our many burning virology questions (interview recorded December 30, 2020). As always, we wrap up the episode by discussing the top five things we learned from our expert. If you would like to read Dr. Rasmussen's article in The Guardian about the new SARS-CoV-2 variants, follow this link.

To help you get a better idea of the topics covered in this episode, we’ve listed the questions below:

1. Can you tell us a bit about SARS-CoV-2? What kind of virus it is, other viruses it’s related to, and what that tells us about the virus and the disease it causes?
2. Could you tell us a bit more about the B117 strain, like whether this appears to be a new strain and how it is different? Do we have any evidence of any strains that seem to cause more severe disease or affect different populations?
3. Where do these new strains come from?
4. What does this new strain (or multiple new strains) mean for the effectiveness of the vaccines that have been developed? Will these vaccines work against these new strains? 
5. What additional things have we learned about the structure or surface proteins of SARS-CoV-2 that give us more insight into how it causes disease or the widespread effects it has on the body?
6. Is there any indication that the virus can be airborne? Does fecal-oral transmission seem to be playing a role?
7. What are the various ways to test for SARS-CoV-2? Can you walk us through what each experience is like?
8. How do the rapid vs PCR tests work? And can you compare their accuracy? Why does the rapid test have a higher rate of false negatives than the PCR test?
9. What has this pandemic taught us about virology?

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We’re back with another episode in our Anatomy of a Pandemic series on COVID-19. This time, our subject matter is the one everyone has been waiting for: vaccines. In this episode, with the help of two amazing guests, we attempt to answer all of your burning questions about the new vaccines for the virus that causes COVID-19. We walk you through the ins and outs of the technology behind these vaccines, the safety and regulation steps required for their approval, and some of the logistical challenges involved in their distribution. For this info-packed episode, we were so fortunate to be joined by Dr. Maria Sundaram (interview recorded Dec 14, 2020), postdoctoral fellow at the University of Toronto Center for Vaccine Preventable Diseases and fellow at ICES and Dr. Orin Levine (interview recorded Nov 24, 2020), Director of Vaccine Delivery at the Bill and Melinda Gates Foundation. As always, we wrap up the episode by discussing the top five things we learned from our experts. If at the end of this interview, your curiosity about vaccines is not quite satisfied, check out the COVID-19 Vaccine Tracker website, which is an incredible resource for pretty much anything you could ever want to know about these vaccines.

To help you get a better idea of the topics covered in this episode, we’ve listed the questions below:

1. Can you break down what the three potentially successful COVID-19 vaccines are and how each of them work?
2. What are in these vaccines? What are the ingredients and what do they do?
3. There has been some misunderstanding that these vaccines have the potential to give you COVID-19. Can you explain why that isn’t possible?
4. Why are people being advised to wear a mask even after getting vaccinated?
5. What does the timeline look like for these vaccines until we can go to the doctor or pharmacy and get one?
6. Is it a valid concern that this vaccine was developed so rapidly? And could you walk us through some of the steps being taken to ensure safety and efficacy of a vaccine?
7. Can you talk about what emergency use authorization means and whether we’ve seen this before and under what circumstances?
8. Why should people be no more scared of this vaccine than the usual vaccines, like MMR and seasonal influenza?
9. How likely is it that additional side effects we haven’t yet seen or long-term side effects will emerge later on?
10. What do we know about the risk of vaccine-induced antibody-dependent enhancement with this vaccine?
11. What do we know so far about the efficacy of these vaccines? Can you walk us through efficacy vs effectiveness in terms of vaccines?
12. What do we know so far about how long immunity is expected to last from the various vaccines that are close to completion?
13. What are some of the issues with clinical trials in vaccine development in terms of getting a representative subsection of the population and what does this mean for who may be able to get a vaccine once one is ready?
14. Why do you still need to get vaccinated even if you’ve already had COVID-19?
15. For our listeners who may know someone who is hesitant to receive the vaccine, what advice or reassurance can you give them that choosing to get one of these vaccines is a better option than taking your chances with COVID-19?
16. What are the biggest hurdles to vaccine distribution here in the US?
17. What are the biggest hurdles in terms of global distribution of the vaccine? And what is being done to address some of these challenges in vaccine access?
18. We’ve heard about some countries pre-purchasing large stocks of vaccines, how may that affect the global availability especially in lower income countries?
19. How might the availability of several different successful COVID-19 vaccines affect how different countries build their vaccine supply or distribution chain? 
20. Could you talk about how skepticism surrounding vaccines plays into not only vaccine development but administration, and what can be done to rebuild trust in those communities?
21. How do you think this pandemic will change the way that we view either emerging infectious diseases or vaccines in the future?

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That’s right, we are rebooting our Anatomy of a Pandemic series in which we cover various aspects of the COVID-19 pandemic that has held the world in its grip since early 2020. Since our first episodes in the series dropped in March of this year, we have learned quite a lot about the SARS-CoV-2 virus, the disease it causes, patterns in its transmission, and of course, how we can best control it. In our first episode back, we focus on this last facet by exploring what we now know about policies and practices that work best to slow the spread of this virus and dive into some of the nuance surrounding masks, infection hot spots, and traveling. For this episode, we were so delighted to chat with Dr. Saskia Popescu, infectious disease epidemiologist and infection preventionist and Assistant Professor of Biodefense at George Mason University (interview recorded December 4, 2020) (Twitter: @SaskiaPopescu). As always, we wrap up the episode by discussing the top five things we learned from our expert. To help you get a better idea of the topics covered in this episode, we’ve listed the questions below:

1. What have we seen so far in terms of regional or statewide control policies or practices that seem to best work for infection control?
2. How might something like a nationwide mask mandate or even just fact-based, rational messaging have changed the course of this pandemic in the US?
3. Can you highlight some of the patterns in the policies or practices of the countries where COVID-19 has been pretty well managed, in your opinion? Basically, what are other countries doing better than we are?
4. Which individual behaviors or practices have been shown to be the most effective for virus control?
5. Can you break down some of the different types of masks and explain which types of masks seem to be doing a pretty great job of slowing transmission and which ones may not be as effective?
6. Our knowledge of where transmission is most likely to occur has become more nuanced as the pandemic has continued. How do things like grocery store visits and outdoor runs compare to indoor dining or working out in a gym? What are we seeing as hot spots of infection and what are safer than we previously thought?
7. Although we know much more now than we did at the beginning of this pandemic, the fundamentals of the virus’s transmission and the ways we can control it haven’t really changed. So where is this surge of cases coming from?
8. Do you think the lockdowns or increased restrictions being put into place in some high prevalence locations will have the same effect in flattening this third wave as they seemed to earlier in this pandemic?
9. Do you think we’ll see a reduction in seasonal respiratory infections overall due to the mask wearing, increased handwashing, and social distancing people are practicing?
10. What are the steps people can take to be as safe as possible if they are committed to traveling during this holiday season?
11. What would you say to those experiencing COVID fatigue?

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Your long wait is finally over - the season four premiere of This Podcast Will Kill You has arrived! And to mark the special occasion, we’re taking on a topic that is both classic TPWKY material as well as enormously relevant to current discussions in public health. Typhoid fever has been the cause of untold death and devastation throughout human history, and despite our advancements in both treatment and prevention of the disease, it continues to wreak havoc on millions of people around the world every year. This week, we take a trip through the terror of typhoid, starting by tracing the journey this bacterium makes through your body before taking a look at the long history of typhoid in human populations. And what story of typhoid would be complete without Typhoid Mary? We examine the plight of Mary Mallon in the context of today’s COVID-19 pandemic and discuss the tension that often arises between individual and community rights in matters of public health. Finally, we wrap things up with a look at the current status of typhoid fever around the world (spoilers: it’s pretty terrible) as well as some promising developments on the horizon (spoilers: okay, it might not all be bad!).

We are so excited to be back with you this season, coming through your headphones with some casual chat about diseases throughout human history! As always, we are happy to hear from you about what you’d like us to cover, so send any suggestions through our website contact form. For your TPWKY merch needs, check out the sweet offerings on our shop's page. And for extra reading, you can find references for each episode on the episode page or check out our bookshop.org affiliate page or our Goodreads list.

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Well, TPWKY listeners, it has been a heck of a year, and it’s not even over yet! But one thing has come to an end: our third season. Given the profound implications these next couple of months will have on the future of health and security in the United States, for our season finale we chose to cover a topic that’s near and dear to our hearts and minds: birth control. Have you ever thought to yourself, “I know this IUD/patch/pill prevents pregnancy, but how exactly does it do that?” or “How on earth did someone come up with this pill and then get it legalized?” If so, you’re in luck. In this episode, we walk through the basics of how the most common hormonal contraceptives work and then journey through the history of the various birth control movements in the United States. Finally, we wrap up with some of the latest developments in birth control technology (male hormonal contraceptives, anyone?) as well as the major legal decisions impacting access to birth control.

We want to thank all of you fantastic listeners who have been with us through this wild year. You have made it all worth it! And fear not - we’ll be back with season 4 before you know it. Make sure to subscribe so you don’t miss the first episode drop of the next season!

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You’ve heard about smallpox, and you’ve learned about rinderpest. Now it’s time to meet what may be the third disease to ever be eradicated: dracunculiasis, also known as Guinea worm disease. In this episode, we take you through the absolutely remarkable life cycle of this not-so-little worm and the nitty gritty of the havoc it wreaks on a person’s body throughout its journey. Then get out your TPWKY bingo cards, because the history of Guinea worm includes not only mummies and historic papyri but also ancient Rome and fun etymology. To bring us up to speed on the current status of Guinea worm today is Sarah Yerian, Senior Associate Director of the Guinea Worm Eradication Program at the Carter Center. Sara discusses not only how the reduction in prevalence of dracunculiasis has been achieved but also the challenges that remain to finally relegate this worm to the history books.

To learn more about the Guinea Worm Eradication Program at the Carter Center, check out the website or follow them on social media: @CarterCenter. You can also find the link to our firsthand account here.

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The harm caused by herpes simplex viruses (HSV) 1 & 2 often arises not from the pathology of the viruses themselves but rather from the stigma and shame associated with a positive diagnosis. In this episode, we attempt to lay a clear foundation for understanding not only how these viruses work but also what occurred to change the perception of them from “innocuous infection” to “dreaded disease”. Starting us off with his firsthand account is the incredible Courtney Brame, founder and host of Something Positive for Positive People, a non-profit organization and podcast that aims to provide community support, healing resources, and educational discussions around positive HSV and other STI diagnoses as well as larger issues in sexuality and physical and mental health. We then dive into the meat of the episode, tackling such questions as “how do these viruses hide out in your body?”, “what kind of treatment is available?”, “where did these viruses even come from?” and “why is there such a huge amount of stigma and what can we do about it?”. To help us address this last question is our other fantastic guest, Dr. Ina Park, Associate Professor, University of California San Francisco School of Medicine and Medical Consultant, Division of STD Prevention, Centers for Disease Control and Prevention. We chat with Dr. Park about her new book, Strange Bedfellows, when to have “the talk” with your kids, and how we as individuals can break down some of the shame surrounding a positive STI diagnosis.

To learn more about Something Positive for Positive People, head to the website spfpp.org or check out the SPFPP podcast wherever you get your podcasts! You can also follow Courtney on Instagram: @honmychest.

And don’t forget to pre-order Dr. Ina Park’s upcoming book Strange Bedfellows: Adventures in the Science, History, and Surprising Secrets of STDs, expected February 2021. You can find out more about Dr. Park and her work on her website or by following her on Twitter: @InaParkMD or Facebook: Ina Park.

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Neglected and ignored by the medical establishment throughout most of its history, sickle cell disease remains one of the most common (and commonly misunderstood) genetic conditions in the world. In this episode, we break down the myriad effects that one nucleotide substitution can have on the human body and discuss the basics of what it means when blood cells sickle. Continuing with the theme of the seen and unseen, we then turn to the history of sickle cell disease, a history of long-standing injustice and the unending fight to raise awareness and provide support for those impacted by the condition. And as always, we wrap up with a discussion on the current global status of sickle cell disease and some exciting new treatment options on the horizon. 

We are so honored and thrilled to be joined this episode by not one, not two, but three incredible guests! You’ll hear first from Marsha Howe and Sharif Tusuubira, who share with us some of their firsthand experiences living with sickle cell disease. And then in our current status section, Dr. Megan Hochstrasser from the Innovative Genomics Institute walks us through the mind-blowing genome editing approaches being used to treat genetic conditions such as sickle cell disease.

You can follow Marsha on her website for her non-profit organization and blog “My Life With Sickle Cell” as well as through her social media channels: Twitter: @MarshaMLWSC, Instagram: @marsha_h181, Facebook: Marsha Howe. And make sure to check out B Positive Choir too! Twitter: @bpositivechoir and Instagram: @bpositivechoir.

Learn more about Sharif Tusuubira’s amazing advocacy efforts on his website and through his social media channels: Twitter: @tkksharif, Instagram: @tkksharif, Facebook: Sharif Kiragga Tusuubira. You can also watch his 2017 talk in Washington, DC as a Mandela Washington Fellow.

And to learn more about the futuristic-sounding research being done at the Innovative Genomics Institute (including using CRISPR to develop a faster, cheaper coronavirus test!), you can follow Megan (@thecrispress) and IGI (@igisci) on Twitter, or head to their website.

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Are you one of the billions of people around the world who starts your day with a freshly brewed and deliciously aromatic cup of coffee or tea or maybe even hot chocolate? Or are you caffeine-avoidant, looking on at your coffee-addicted friends with confusion and maybe even pity? In either case, this episode is for you. We are joined by the one and only Matt Candeias of In Defense of Plants to tackle the world’s most consumed psychoactive drug: caffeine. First we get a taste of the massive history of the most popular caffeine-containing beverages, then we trace what exactly caffeine does in your body after that first scrumptious sip. And finally, we explore what role this compound has for those many, many plants that produce it. We hope you find this episode as stimulating as its subject!

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“I have discovered something interesting, but I do not know whether or not my observations are correct.” With these words, Wilhelm Röntgen introduced the world to an invisible power, a power which would in turn be used to both harm and heal. This week, we take a tour of the wide world of radiation, starting with a primer on what radiation actually is and how it works, courtesy of Dr. Timothy Jorgensen, Associate Professor of Radiation Medicine and Director of the Health Physics and Radiation Protection Graduate Program, Georgetown University. Then we discuss the nitty gritty on what radiation does to you on a cellular level. We follow that up with a stroll through some of the major moments in the history of radiation - from X-rays to atomic bombs and from radioluminescent paint to cancer treatments. Finally we wrap things up by chatting about the many amazing medical applications of radiation therapy and how you can assess the risk/benefit of that X-ray or mammogram.

To read Dr. Jorgensen’s incredible book Strange Glow: The Story of Radiation, check out his website or head to our website for our full list of sources.

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No story of antibiotics would be complete without the rise of resistance. As promised in our last episode, this week we dive into what the WHO calls ‘one of the biggest threats to global health, food security, and development today’ - antibiotic resistance. In the decades since their development, misuse and overuse of antibiotics has led to many becoming all but useless, and our world seems on the verge of plunging into a post-antibiotic era. How does resistance work? Where did it come from? Why did it spread so far so rapidly? Is there any hope? In this episode, we answer all these questions and more. First, we explore the many ways bacteria evade the weaponry of antibiotic compounds. Then we trace the global spread of these resistant bugs by examining the major contributors to their misuse and overuse. And finally we assess the current global status of antibiotic resistant infections (spoiler: it’s very bad) and search for any good news (spoiler: there’s a lot!). To chat about one super cool and innovative alternative to antibiotics, we are joined by the amazing Dr. Steffanie Strathdee (Twitter: @chngin_the_wrld), Associate Dean of Global Health Sciences, Harold Simon Professor at the University of California San Diego School of Medicine and Co-Director at the Center for Innovative Phage Applications and Therapeutics. Dr. Strathdee provides a firsthand account of helping her husband, Dr. Tom Patterson, fight off a deadly superbug infection by calling on a long-forgotten method of treating bacterial infections: phage therapy.

To read more about phage therapy and Dr. Strathdee’s incredible experiences, check out The Perfect Predator: A Scientist's Race to Save Her Husband from a Deadly Superbug: A Memoir. 

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Fifty episodes. That’s fifty (sometimes) deadly viruses, bacteria, protozoa, parasites, and poisons. And don’t forget the fifty quarantinis to accompany each! What better way to celebrate this momentous occasion than talking about something that may actually save you: antibiotics. In this, our golden anniversary episode, our ambition tempts us to tackle the massive world of these bacteria-fighting drugs. We explore the various ways that antibiotics duel with their bacterial enemies to deliver us from infection, and we trace their history, from the early years of Fleming and Florey to the drama-laden labs of some soil microbiologists. Finally, we end, as we always do, with discussing where we stand with antibiotics today. Dr. Jonathan Stokes (@ItsJonStokes), postdoctoral fellow in Dr. Jim Collins’ lab at MIT, joins us to talk about some of his lab’s amazing research on using machine learning to discover new antibiotics, which prompts us to repeat “that is SO COOL” and “we are truly living in the future.” We think you’ll agree.

To read more about using machine learning to uncover antibiotic compounds, head to the Collins’ lab website, the Audacious Project site, or check out Dr. Stokes’ paper: 

Stokes, Jonathan M., et al. "A deep learning approach to antibiotic discovery." Cell 180.4 (2020): 688-702.

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The eleventh episode of our Anatomy of a Pandemic series has arrived, and just in time. Have you found yourself trying to sift through headlines claiming “this model predicts that” and “that model predicts this”, but you’re not sure where the truth really lies? Then this episode is for you. With the help of Dr. Mike Famulare from the Institute for Disease Modeling (interview recorded April 29, 2020), we walk through the basics of mathematical modeling of infectious disease, explore some of the current projections for this pandemic, and discuss some guidelines for evaluating these headline-making models. As always, we wrap up the episode by discussing the top five things we learned from our expert. To help you get a better idea of the topics covered in this episode, we’ve listed the questions below:

1. What is a math model and what are some of the goals of mathematical modeling?
2. So talking specifically now about infectious disease models, can you walk us through what the basic components are of an infectious disease model, like an SIR model?
3. Where do you get the data that you use to estimate the parameters in an SIR model - what is based on actual data and what has to be estimated?
4. Infectious disease outbreaks often have a curve-like shape, with the number of infected individuals on the y-axis and time on the x-axis. Can you explain why infectious disease epidemics tend to follow a curve?
5. Can you talk us through some of the assumptions that you have to make when you're constructing one of these models and how that kind of relates to the uncertainty inherent within models? How might that uncertainty affect interpretation?
6. What are some examples of the various ways we use infectious disease models in public health policy? Can you talk about how models might be used at various stages of a pandemic to guide public health measures? How might our use of models early on in a pandemic be different from the middle of one?
7. Speaking specifically about COVID-19 now, can you talk about what a basic model for this pandemic might look like? 
8. Are models for COVID-19 using only lab-confirmed cases of the disease or clinical-confirmed cases as well?
9. Looking back on these earlier models of COVID-19, what can we take away from the performance of these models?
10. Is there any agreement among models as to what policies might be the best in terms of keeping cases and deaths as low as possible? 
11. For those of us who have no background in mathematical or statistical modeling, are there guidelines that we should use to evaluate these models or compare them? What should we (as in the general public) be taking away from these models?
12. Are there any positive changes you hope to see come out of this pandemic, either as a member of the community or as a math modeler?

For a deeper dive into the wonderful world of infectious disease models, we recommend checking out this recent video from Robin Thompson, PhD of Oxford Mathematics titled “How do mathematicians model infectious disease outbreaks?” The video was posted on April 8, 2020.

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In the tenth episode of our Anatomy of a Pandemic series on COVID-19, we continue our exploration of the diverse impacts of this pandemic by taking a look at how education and schooling has been affected, with a particular focus on the United States. Massive school closures and transition to distance learning has revealed vast inequities in access to basic educational needs and has highlighted the importance of public schools as more than just a place to learn. We are joined by journalist Jennifer Berkshire (Twitter: @BisforBerkshire) and education historian Dr. Jack Schneider (Twitter: @Edu_Historian), producers of Have You Heard, a podcast on educational policy and politics, to examine the current challenges in delivering educational content during this pandemic and some implications for the future of public schools (interview recorded April 17, 2020). As always, we wrap up the episode by discussing the top five things we learned from our expert. To help you get a better idea of the topics covered in this episode, we’ve listed the questions below:

1. Have we seen anything like this before, like with the 1918 influenza pandemic and school closures due to polio epidemics?
2. What are some of the services that public schools in the US provide? And how is this pandemic revealing that schools are more than just a place to learn? 
3. Can you talk briefly about the inequalities in education and access and their historical roots?
4. Are these inequalities unique to the United States or are there other countries where similar inequalities are seen or being revealed by this pandemic?
5. Who is being left out in this switch to distance learning?  
6. Can you discuss how well distance learning works across different age groups?
7. Do you think that this epidemic will make policymakers and politicians see the economic value of schools? Or is it going to further decrease funding to schools and result in the dismantling of the public school system? How do you think our definition of school will change after this pandemic?
8. What was the trajectory of funding for public schools before this pandemic?
9. How well does distance learning seem to work? 
10. When schools re-open, what kind of effects are we going to see on current students? Specifically, how do we recover when some kids will have continued to learn during this pandemic and others will likely have fallen further behind? 
11. What positive changes do you hope to see come out of this?

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Episode 9 of our Anatomy of a Pandemic is here, and this week we’re stepping outside our public health sphere to examine COVID-19 from an entirely different perspective, that of an economist. Pandemics don’t happen in a vacuum, and the ripples of their impact extend far beyond those of public health, as nearly every person can attest to today. We’ve seen headlines about a global recession and high rates of unemployment, but what do those things actually mean? Have we seen something like this before or is this uncharted territory? And most importantly, what can we expect? We were curious to know the answers to these questions but we lack the expertise to take them on ourselves, so we asked economist Martha Gimbel, Manager of Economic Research at Schmidt Futures to join us on this episode about the economic impacts of COVID-19 (interview recorded April 14, 2020). A caveat: this episode focuses mostly on the economic impact of the pandemic in the US. As per usual, we wrap up the episode by discussing the top five things we learned from our expert. To help you get a better idea of the topics covered in this episode, we’ve listed the questions below:

1. What are some of the indicators that we use to know how the economy is performing, and what were the trends we were seeing in the months before this pandemic hit?
2. Could you take us through a timeline of the economic impact, starting with the first signs that the pandemic was having an impact on the global economy? What industries felt the pandemic first, and where do we stand now?
3. Could you break down the impact that we’re seeing on the global economy, the US economy, large corporations, small businesses, and the average consumer?
4. Was there a global recession after the 1918 influenza pandemic? If not, what makes these current circumstances unique?
5. Which countries or industries are the most vulnerable and why?
6. Are certain countries or industries proving to be more resilient in the face of this global recession?
7. Can you talk about the gig economy here and how our reliance on low-paid workers with no protection from their employers has impacted our own economic resilience?
8. Can you talk about the implications of the numbers of unemployment insurance filings that we’re seeing and just how staggering they are?
9. Are the current benefits offered through the unemployment system going to be enough to keep people at home and not seeking work in situations that put them at higher risks of exposure?
10. Are there any general trends or predictions in terms of how long this recession will continue and what it will take to recover? How will we know when we have “recovered”?
11. Are you seeing any innovative solutions that people are proposing or starting to implement in terms of a social safety net?
12. What positive changes do you hope this pandemic will bring about?
13. Where is the money for the stimulus checks coming from?
14. Is that $1200 check going to be enough to keep people going for the next few months?

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You don’t look surprised to see this in your podcast feed - or is that just the botox? This week we’re taking a tour of the wonderful world of Clostridium botulinum and the toxin it produces, at once both poison and prescription. First, we delve into how botulinum toxin acts to paralyze your muscles and under what circumstances you might encounter it. Then we iron out the wrinkles of the why of botulinum toxin, an answer that involves migratory birds, maggots, and marshes. The story continues with blood sausages, an unfortunate funeral party, and a massive shift from toxin to treatment as the therapeutic potential of botulinum toxin is explored. And the best part of this episode? Georgia. Hardstark. You’ve heard the always amazing, ever hilarious, and one of our personal heroes Georgia Hardstark on My Favorite Murder, but now listen to her share her firsthand experience with getting botox facial injections. This episode ranks among our top favorites we've ever recorded, and we hope you love it as much as we do!

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In the eighth episode in our Anatomy of a Pandemic series focusing on COVID-19, we discuss how this pandemic will likely lead to a disproportionate impact on the most vulnerable populations around the globe. “Wash your hands.” “Stay at home.” “Practice physical distancing.” These are the public health messages for how to slow this pandemic. But what happens when you can’t wash your hands because you lack clean water or soap? Or if you can’t stay at home because you’re fleeing a war zone? Dr. Jonathan Whittall, Director of Analysis at Medicines Sans Frontières (aka Doctors Without Borders) joins us to talk about the challenges faced by the most vulnerable populations during this crisis and how MSF is working to overcome those challenges while bracing for the pandemic’s impact (interview recorded April 3, 2020). We wrap up the episode by discussing the top five things we learned from our expert. To help you get a better idea of the topics covered in this episode, we have listed the questions below:

1. What kind of projects are you currently working on?
2. Can you talk about what you're seeing in terms of the differences between this COVID-19 pandemic and other public health emergency situations, such as cholera outbreaks in refugee camps or Ebola epidemics?
3. What are some lessons that you think hospitals in other regions can learn from physicians or logistical coordinators that have worked in these situations previously?
4. You wrote a great opinion piece about some of the challenges faced by the most vulnerable populations in trying to prevent infection with the virus that causes COVID-19. Can you talk a bit about those challenges and what the most vulnerable populations are?
5. What are some of the ways that MSF has been trying to overcome those challenges? 
6. What have we seen so far in terms of the impact of COVID-19 on these vulnerable populations?
7. MSF has recently expanded their efforts throughout Europe - can you talk about what that expansion looks like and how different groups or activities are prioritized?
8. As a part of a group that works internationally, can you talk about some of the challenges in coordinating this work internationally and why it's so crucial to communicate across borders?
9. There's been a lot of discussion about how this pandemic may change the way we handle public health at national and, especially, international scales. What are some of the changes you hope to see?

Follow Dr. Jonathan Whittall (@offyourrecord) or check out the MSF-Analysis website (http://msf-analysis.org/). And read his fantastic article here: https://gulfnews.com/opinion/op-eds/bracing-for-impact-of-the-coronavirus-1.70570512

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Coming at ya with our seventh episode in our Anatomy of a Pandemic series on the ongoing COVID-19 situation. So far in the series, we’ve discussed aspects of the virus’s biology, clinical disease, epidemiology, and control efforts. We’ve briefly touched on aspects of the virus’s ecology, including its origins, but we wanted to take a step back and ask, “how do spillover events happen and how do we stop them?” To answer those questions (and many more), we brought on Dr. Jonna Mazet, Professor of Epidemiology and Disease Ecology at the UC Davis School of Veterinary Medicine and Executive Director of the UC Davis One Health Institute, who has spent much of her professional life on the hunt for emerging pathogens (interview recorded April 2, 2020). We pick Dr. Mazet’s brain on how we look for and identify pathogens of possible public health concern, what work disease ecologists are currently doing on SARS-CoV-2, and what we can expect to see in terms of future spillover events. We wrap up the episode by discussing the top five things we learned from our expert. To help you get a better idea of the topics covered in this episode, we have listed the questions below:

1. Can you take us through a step-by-step of how surveillance of novel pathogens is done? From the logistics of international coordination to the sampling to the reporting - what does that look like?
2. What happens when you do identify a potential spillover event?
3. Can you talk about how you decide what a hotspot is? What makes a hotspot a hotspot basically?
4. We've talked a lot on this podcast about spillover events, and obviously they can happen in many different ways, but can you give us a general overview of how one occurs? What are some patterns we see with all spillover events?
5. Over the past 100, 200 years, land use change has increased and the barrier between humans and wildlife has decreased - have we seen a corresponding increase in spillover events during that time?
6. What do we know at this point about how SARS-CoV-2 spilled over into humans?
7. I assume eventually we will get a clearer picture of how that spillover event occurred. How can we use that information in the future?
8. Can you talk about what it means for a pathogen to "jump species"? Do viruses more easily "jump species" compared to bacteria, or is it just that we hear more about the viruses?
9. I'd like to talk about what happens when prevention has to shift to control. What are the first steps taken for disease ecologists studying this outbreak? How is the One Health approach being used to study and slow down the current COVID-19 pandemic?
10. What role do we see wildlife conservation playing in spillover events or preventing them? Can you talk about how there can be a conflict in wildlife conservation for the greater good when people are also just trying to feed their families?
11. How do you determine whether something easily moves between species? Is that a genomic question or is it an experimental question? 
12. What do you think are some of the biggest barriers or challenges in identifying these spillover events in the future?
13. The One Health approach is such a great example of interdisciplinary collaboration. Can you talk about what some of the different fields are that work in One Health?
14. What positive changes do you hope to see come out of this pandemic?

Follow Dr. Jonna Mazet (@JonnaMazet), the PREDICT project (@PREDICTproject), and the Global Virome Project (@GlobalVirome). Or check out their websites: One Health Institute (https://ohi.vetmed.ucdavis.edu/), PREDICT (http://data.predict.global/), Global Virome Project (www.globalviromeproject.org).

The firsthand account was taken from a piece by Craig Spencer, MD written for the Washington Post titled, “How long will we doctors last?”

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Welcome to Chapter 6 of our Anatomy of a Pandemic series exploring the world of COVID-19. If you have made it this far in the series, you might be feeling a bit overwhelmed by all of the information we’re throwing your way. You’re not alone. We were feeling a bit too deep down the rabbit hole as well. So we reached out to Rosemary Walker and Peter Rosencrans, two psychology doctoral students at the University of Washington to talk to us about the mental health impacts this pandemic has had and walk us through some coping strategies (interview recorded March 20, 2020). Hang in there, everyone. To help you get a better idea of the topics covered in this episode, we have listed the questions below:

1. You are both in Seattle, which has been impacted longer than much of the US, so, how are you? (05:55)
2. This is a brand new situation for all of us that's affecting so much more than our physical health.So what are we seeing in terms of some of the mental health outcomes? (09:21)
3. What are some of the challenges that you, as mental health professionals, have faced so far and that you expect to appear in the future related to COVID-19? (15:59)
4. What are some coping strategies that we could use to deal with some of these issues? (19:15)
5. What are some resources for people who normally see a therapist, but who cannot now because of COVID-19? (31:43)
6. How can we as individuals be good neighbors, community members, in this stressful time while still protecting our mental health? (36:50)
7. Do you have any specific resources that our listeners could seek out? (41:09)

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Chapter 5 of our Anatomy of a Pandemic series covering all things COVID-19 goes through some of the exciting developments in potential vaccines for this new virus. Starting us off is an anonymous account describing the challenges faced by someone in the US trying to get tested for COVID-19. Then we review some of the basics of vaccines - how they work, the different kinds, and some of the challenges in accelerating the vaccine development pipeline during a crisis such as this. We sought the expert knowledge of Dr. M. Elena Bottazzi (interview recorded March 17, 2020), who is part of a group that is currently working on developing a vaccine for SARS-CoV-2. She answers a number of your vaccine- and treatment-related questions and sheds some light on the prospects of vaccine development for this particular disease. We wrap up again by going through the top five things we learned from our expert. To help you get a better idea of the topics covered in this episode, we have listed the questions below:

1. What makes this virus a good candidate for a vaccine? (11:05)
2. Why is it more difficult these days to produce completely protective vaccines vs partially protective vaccines? (13:29)
3. How is the vaccine that your group is working on made, what is its target and how does it work? (16:02)
4. What is the timeline of vaccine development, testing, deployment, and how soon might we see an effective vaccine for SARS-CoV-2? (21:19)
5. What steps of this development process can be shortened to get an 'early release' of a vaccine? (25:49)
6. It seems we are better at developing vaccines than we are antivirals; why is this? (28:55)

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The fourth installment of our Anatomy of a Pandemic series takes a look at some of the epidemiological characteristics of the COVID-19 pandemic. But first, we hear about the experience of Katie Burson, who was quarantined along with her family on the infamous Diamond Princess cruise ship in February 2020, when cases of COVID-19 were reported among guests. Then we review some of the disease ecology of the SARS-CoV-2 spillover event and walk through a timeline of the pandemic, which, we have to admit, is pretty chilling to hear. We are joined by Dr. Carlos del Rio (interview recorded March 20, 2020), who chats with us about updated estimates for the R0 of SARS-CoV-2, reasons for regional variation in case fatality rates, and what the deal is with the slow rollout of tests in the US. We wrap up again by going through the top five things we learned from our expert. To help you get a better idea of the topics covered in this episode, we have listed the questions below:

1. Do we know what the R0 is for this virus? (27:44)
2. Is there a risk for a second wave of infection in China or other places where the disease seems to be slowing down? (29:31)
3. What are the stages of an epidemic curve and what does it mean to flatten that curve? (31:03)
4. Are people who get infected able to be re-infected or are they immune? (32:45)
5. What is the relative effect of social distancing vs herd immunity? (33:31)
6. How can we convince people who can stay home to actually stay home? (34:40)
7. What are the differences between populations that contribute to the differences in case fatality rate between China vs Italy vs South Korea, etc? (36:28)
8. What might we see in terms of numbers of infections or how long the outbreak will last? What's the end game? (38:00)
9. Should the measures that have been enacted in some parts of the US be happening even in places with fewer cases so far? (40:55)
10. Is this virus likely to become well established and another 'seasonal' respiratory infection? (42:16)
11. What's the deal with testing in the US? Why was rollout so slow at the beginning? (43:14)
12. When should a person try to get tested if they suspect they're infected? (45:58)
13. What has this outbreak taught us so far about our ability to respond to pandemics, and how can we do better moving forward? (46:36)

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Welcome to the third chapter of our Anatomy of a Pandemic series, in which we cover the many aspects of the COVID-19 pandemic. In this chapter, we discuss how epidemic control can be managed from the individual, state, and national levels, as well as the importance of international collaboration to prevent the uncontrolled spread of disease. We start off with a firsthand account from Dr. Colleen Kraft, featured in COVID-19 Chapter 2, who shares the challenges she faces on a daily basis during this crisis while acting as Associate Chief Medical Officer at Emory University Hospital. Then we review some of the terms you’ve probably seen all over the news lately, such as “flattening the curve” or “social distancing”. Dr. Krutika Kuppalli (interview recorded March 18, 2020) shares with us her expertise from a global health and pandemic preparedness perspective, and she answers some of your questions relating to the steps you can take to protect yourself, your loved ones, and your community. We wrap up again by going through the top five things we learned from our expert. To help you get a better idea of the topics covered in this episode, we have listed the questions below:

1. Now that community transmission is established in the US, what can we do to slow it down? (18:05)
2. Do we need to enact these control measures (social distancing, etc.) everywhere, even in places currently have low case numbers? (19:51)
3. Are travel bans effective in slowing disease spread? (21:20)
4. How can we tell if our control measures are working? (22:52)
5. How soon do we expect to see the effect of these control measures? (24:00)
6. There have been a lot of comparisons with seasonal influenza. How does COVID-19 compare to seasonal influenza and why are we taking such extreme measures to reduce the spread of this disease when we don't do so for seasonal influenza? (25:22)
7. How well prepared was the US for this epidemic? (28:25)
8. What have we learned so far to help us stop the spread of this pandemic and prepare for future pandemics? (31:19)
9. What are the risks as this pandemic spreads to less well-resourced areas? (33:39)

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This marks the second installment in our Anatomy of a Pandemic series, in which we discuss the various aspects of the COVID-19 pandemic. In this second chapter, we explore what we currently know about the disease itself, from symptom progression to incubation period and the role that asymptomatic individuals play in the transmission of disease. Our firsthand account, told from the perspective of a respiratory therapist, illustrates the severity of this disease and the frightening, yet very real, prospect of running out of medical equipment, protective gear, and hospital beds. We then discuss what we currently know about COVID-19 from a clinical disease perspective. We are joined by Dr. Colleen Kraft (interview recorded March 19, 2020), whose voice you may recognize from our first episode on coronaviruses. She helps to break down some of the disease-related questions sent in by our listeners. We wrap up the episode by discussing the top five things we learned from our expert. To help you get a better idea of the topics covered in this episode, we have listed the questions below:

1. What does "respiratory droplet" transmission mean, and how is this different from something with "airborne" transmission? (15:08)
2. What are the symptoms of COVID-19? (16:48)
3. How long is the disease course, and how does this vary between mild vs severe symptoms? (18:45)
4. What does "supportive care" mean in the context of caring for people who fall severely ill from COVID-19? (19:40)
5. How much does viral load correlate with the severity of symptoms? (20:47)
6. What is the incubation period of this disease, how long do people remain infectious, and are asymptomatic people contributing to the spread of disease? (22:22) 
7. What are the groups that are particularly at risk for severe disease? (24:00)
8. Why do children seem to be more resistant to this infection? What about children who are immunocompromised, are they at risk? (27:40)
9. What is the case fatality rate, and how might we expect it to change throughout the course of this pandemic? (29:09)
10. Are there long term complications associated with COVID-19? (31:58)
11. Is it possible to get re-infected if you get this virus and then recover? (32:54)

The full article our firsthand account came from can be found here: https://www.propublica.org/article/a-medical-worker-describes--terrifying-lung-failure-from-covid19-even-in-his-young-patients

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To discuss the ongoing COVID-19 pandemic, we are introducing Anatomy of a Pandemic, a series in which each episode tackles a particular aspect of COVID-19, from virus biology to clinical disease, from control efforts to epidemiological patterns, from vaccine development to mental health coping strategies during this uncertain time. And we’ve got a quarantini (and placeborita) recipe for each installment! In the first episode of this series, we tackle some of your questions about SARS-CoV-2, the virus that is responsible for COVID-19 (aka COronaVIrus Disease-2019). Our episode begins with a firsthand account from Tiziano, a schoolteacher in northeastern Italy who has been living under the strict movement restrictions imposed by the Italian government in an attempt to limit the spread of the disease. Then, we review some of the basics about SARS-CoV-2 and RNA viruses in general. To help us discern fact from fiction, we seek the expertise of a virologist, Dr. Angela Rasmussen (interview recorded March 15, 2020), who answers some of the listener-submitted questions about the virus itself. We wrap up the episode by discussing the top five things we learned from our expert. To help you get a better idea of the topics covered in this episode, we have listed the questions below:

1. What are the origins of this virus? Where did it come from?
2. How can we tell whether this virus originated from one spillover event or multiple?
3. What do we know about the mechanism of how this virus causes disease in humans?
4. Are there multiple strains of SARS-CoV-2, and how do different strains of virus affect disease severity? 
5. Is there a risk of SARS-CoV-2 mutating into something more deadly? 
6. What is Remdesivir and how does it work? 
7. How does handwashing work to reduce transmission risk?
8. How long can SARS-CoV-2 live on surfaces? 
9. What is the minimum infective dose of SARS-CoV-2?

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[TRIGGER WARNING: see below] Whooping cough, that terrible childhood scourge, has been making an alarming comeback due to lapses in vaccination coverage across the globe. And in this episode, we’ll tell you why exactly its return is a cause for concern. From the devastation it wreaks on the body to the untold tragedy of past epidemics, pertussis is a dreaded disease that was nearly relegated to the past thanks to the amazing efforts of three incredible researchers, Pearl Kendrick, Grace Eldering, and Loney Gordon. But as the provider of our firsthand account illustrates, pertussis is still very much present today. We are joined by the incredible Catherine Hughes, who does us the honor of sharing her story about her son Riley and her efforts to raise awareness about the importance of childhood vaccinations.

Read more about the Light for Riley campaign and the Immunisation Foundation of Australia to see the hugely important work being done.

Trigger Warning: The firsthand account of this episode features the death of an infant. If you do not wish to hear this, skip to 5:10.

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What better time to explore the world of coronaviruses than amidst an outbreak of the 2019 novel coronavirus that brings to mind memories of SARS and MERS? On this very special episode of This Podcast Will Kill You, we’ll take you through what we know about this diverse group of viruses, from the mild strains constantly circulating to the epidemic ones that make headlines with their lethality. Want to know how exactly these royal viruses make you sick? Or what went on during the 2002-2003 SARS epidemic? Don’t worry - we’ve got you covered. And to help us get a grasp on the current 2019-nCoV outbreak that’s got the world’s attention, we’ve brought on four experts from Emory University to give us the lowdown: Dr. Colleen Kraft, Dr. G. Marshall Lyon, Dr. Aneesh Mehta, and Dr. Carlos del Rio.

*Please keep in mind, we recorded this episode on Sunday, Feb 2 and conducted the interviews between Jan 29 and 30, 2020. Since recording, the statistics on 2019-nCoV that we and our guests reported have changed as the epidemic continues to evolve. The figures are changing fast, but the basic info is still relevant.

To follow the 2019-nCoV outbreak, our experts recommend the following as reliable sources of information:

1. WHO 2019-nCoV website, especially the Situation Reports
2. Map Dashboard of 2019-nCoV Cases by Johns Hopkins Center for Systems Science and Engineering
3. CDC 2019-nCoV website

And to learn more about the amazing work that our special guests do on the regular, follow them on Twitter!

Colleen S. Kraft, MD, MSc (@colleenkraftmd)

G. Marshall Lyon, MD, MMSc (@GMLyon3)

Aneesh K. Mehta, M.D., FIDSA, FAST (@AneeshMehtaMD)

Carlos del Rio, MD (@CarlosdelRio7)

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Our first vector-borne disease episode of season 3 and our first mosquito-borne pathogen in quite some time, dengue virus proves itself to be more than a worthy topic (and quite a formidable adversary in terms of public health). This week we are joined by Dr. Alex Trillo who drops some firsthand knowledge on the excruciating symptoms that give dengue its colloquial name “breakbone fever”, and then we trace the virus’s path from its evolutionary origins in ancient forests to the inevitable emergence of dengue hemorrhagic fever following modern war. We round it all out with some truly horrifying stats on the prevalence of dengue today as well as some promising research on reducing the prevalence of dengue tomorrow.

To find out more about Alex’s incredibly cool research, check out her website at www.alextrillo.com and follow her on Twitter at @Trillo_PA.

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Have you missed learning about plant poisons? Well, it’s your lucky day! Today is our first crossover of season three with our friend Matt Candeias of In Defense of Plants. In this episode we delve into the castor bean plant Ricinus communisand its two notorious products: castor oil and the star of the show, ricin. Join us as we learn about ricin’s storied history, which leads us through political assassinations and efficiency in engines, the biology of ricin, which horrifies us with its lethality, and finally, the ecology of the plant, which surprises us with its strategic partnerships.

Looking for more ways to cure your plant blindness? Check out In Defense of Plants at indefenseofplants.com and follow Matt on twitter @indfnsofplnts.

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You’ve seen the headlines: could this cat-associated parasite be controlling your every move? Is the love you have for cats pure or merely a manipulation? Join us as we discuss Toxoplasma gondii, the feline-associated parasite that infects a whopping one third of all humans. Yes, you read that right. From the behavior-altering effects on rodents to the ancestral origins of the domestic cat, we dive deep into all things toxoplasmosis, the disease that sounds like it comes straight out of a sci-fi novel.

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E. coli. Such a short name for such a massive topic. This episode we explore the delightful diversity of Escherichia coli, the ubiquitous bacterium that predates humans and can range in virulence anywhere from “you won’t even know I’m there” to “this is really, really, really gonna hurt”. Today we cover the good, the bad, and the ugly: you’ll hear about the innumerable contributions of E. coli to the fields of genetics, evolution, and microbiology, a detailed account of how pathogenic strains can wreak havoc on your guts, and an exploration of one of the most infamous food-borne illness outbreaks in US history. Hoping we’d end it on a happy note? Better luck next time, folks.

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For our last episode of this season, we’re going out with a bang, or should we say bite? This week we’re tackling the doozy of a disease called Lyme, the most prevalent tick-borne infection in the northern hemisphere. Tune in to hear us navigate the complicated biology of Borrelia burgdoferi, delve into the ancient history of the disease (ice mummy? yes, please!), and trace the tangled ecological web woven by the spirochete, its vector, and its hosts. And to round out this delicious blood-meal of an episode, we are joined by the one-and-only hunter of ticks, ecologist of disease, and PhD advisor of Erins, Dr. Brian Allan! Not only does Brian shine some light on the current innovative research on Lyme disease ecology, but he also details his own experience with the disease. This episode is as full as a tick with information about Lyme disease, making it one you’re not going to want to miss.

The clock is already ticking for our third season premiere on October 29, so mark those calendars, people! And in the meantime, wash your hands, ya filthy animals!

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Despite being one of the most common genetic disorders, affecting millions of people worldwide, cystic fibrosis evaded medical description for thousands of years after its first appearance. But the last century has led to a revolution in diagnosis, treatment, and our understanding of the disease. This week we talk all things cystic fibrosis, from salty sweaty tests to European folklore, from Bell Beaker culture to gene therapy. And we are honored to be joined by Jay Gironimi, author of “Can’t Eat, Can’t Breathe, and Other Ways Cystic Fibrosis Has F#$%*d Me”, who chats candidly about his experience with CF. Oh, and the best part? Jay, also the talented musician behind All Hallow‘s Evil, wrote a custom song specifically for this episode! We loved it so much we named this ep after it, and we know you’re gonna love it too. 

You can find Jay’s book on amazon in both paperback and digital versions, find the audiobook version on audible and more of his writing at canteatcantbreathe.com. You can also find his music at allhallowsevil.bandcamp.com and follow him on twitter @allhallowsevil.

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Walking through a forest at dusk, you’ve likely heard the croaks and groans of frogs and toads forming a chorus in the damp undergrowth. But what if the forest were suddenly, inexplicably, silent? In the 1980s scientists started noticing the forests becoming quieter as amphibian populations around the globe began to decline -- rapidly. Today we are joined by Dr. Taegan McMahon from the University of Tampa to discuss our first ever wildlife disease: chytridiomycosis. Chytrid fungus, or Bd for short, has wreaked havoc on amphibian populations for the last several decades, and researchers are still trying to find a way to stop it. 

For more information on Chytrid and Taegan’s research, follow her lab on instagram @mcmahon_lab. For more awesome parasitology pics, check out @uoftampa_parasitology, and for gorgeous biology art, Taegan does watercolors @wandering.ecologist!  

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This week's episode comes with a warning: don't attempt this at home. While self-experimentation has led to many a scientific breakthrough, we're definitely not advocating it. But it happened to work out for the best for Barry Marshall and Robin Warren, even earning them a Nobel prize. That’s right folks, today we’re talking about none other than Helicobacter pylori, the curvy little bacterium identified only a few decades ago to be a causative agent of peptic ulcer disease, a major risk factor in the development of gastric cancer, and a fierce warrior who can survive the harshest of environments: your stomach.

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Were you stoked about the history and biology of vaccines we covered in part 1, but left with even more questions? Were you really hoping to hear us talk about anti-vaccine sentiment and address misconceptions about vaccines in detail? Did you want even more expert guest insight?! Well then do we have the episode for you! Today, we delve into the history of the “anti-vaccine movement” which, spoiler alert, is nothing new. With the help of Dr. Peter Hotez, Dean of the National School of Tropical Medicine at Baylor College of Medicine in Houston and Co-director of the Texas Children’s Hospital Center for Vaccine Development we address some of the most common concerns and questions that arise about vaccines, their safety, and their efficacy. And finally, we hear from Bill Nye The Science Guy about dealing with the challenges of science communication in the modern world when diseases spread as fast as fake news headlines. Y’all. This is the episode you’ve been waiting for.

You can follow Dr. Peter Hotez on twitter @PeterHotez and check out his book “Vaccines Did Not Cause Rachel’s Autism” 

And you can listen to “Science Rules!” the new podcast from Bill Nye the Science Guy, available now on stitcher https://www.stitcher.com/podcast/stitcher/science-rules-with-bill-nye or wherever you are listening to this podcast!

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The wait is finally over: this week we are very excited to bring you the episode we’ve been teasing for weeks: vaccines! This week and next (you don’t have to wait a full two weeks for the next episode!), we are presenting a two-part series on vaccines. In today’s episode, we dive deep into the biology of vaccines, from how they stimulate your (amazing) immune system to protect you, to how they make you into an almost-superhero, shielding the innocents around you from deadly infections. We take you back hundreds, nay, thousands of years to when something akin to vaccination first began, and then we walk along the long road of vaccine development to see just how massive an impact vaccines have had on the modern world. The best part? We are joined by not one, but two experts from the Bill and Melinda Gates Foundation. Dr. Gail Rodgers and Dr. Padmini Srikantiah explain the process of vaccine development, highlight the challenges of vaccine deployment, and shine a hopeful light on the future of vaccines. And be sure to tune in next week for part 2 where we’ll focus on vaccine hesitancy and address common misconceptions surrounding vaccines in even more depth.

For more information on the Bill and Melinda Gates Foundation initiatives, visit: https://www.gatesfoundation.org/

For more information on vaccines currently in development, check out: https://clinicaltrials.gov/ and https://www.who.int/immunization/research/vaccine_pipeline_tracker_spreadsheet/en/

And, as always, you can find all of the sources we used in this episode on our website: http://thispodcastwillkillyou.com/episodes/

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Today we’re taking a bite out of hookworm, our first macroparasite. We start, as all hookworm journeys must, from the dewy grass, where larvae burrow into your exposed flesh and make their long and winding way to your guts, where the eggs of a fortunate few will be immortalized in fossilized poop. It’s a tale of human migration, of failed eradication, and of overburdened populations. So pull up a chair, take off your shoes, and rest your feet in the cool dew-soaked grass. But watch out for the ground itch...

Find more from Meramec Valley Girl at https://meramecvalleygirl.com/ and on instagram @meramecvalleygirl

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Are you ready to dilate your mind? Or at least your eyes? We hope so, because that means you’re ready for another Poisoncast episode! This week we’re joined by our friend Matt Candeias from In Defense of Plants to chat about Atropa belladonna, a lethal yet beautiful plant that lives up to all of its many names, including deadly nightshade, belladonna, devil’s berries, and naughty man’s cherries (yes, really). We’ll explore the ancient myth, medieval lore, and modern murder that make up this plant’s history, and then we’ll venture into the nervous system to find out what belladonna has to do with fight or flight. Finally, we talk evolution to see how this deadly substance helps out its plant producer. Pour yourself a quarantini and listen up, making sure you’ve added the right berries to the mix, of course.

Check out Matt’s website indefenseofplants.com and follow him on twitter @indfnsofplnts!

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This week's episode is nothing like any of our past episodes, and there will never be another quite like it. How can we be so sure, you ask? Because this week, we're covering prions, the terrifying, genetic material-less infection that is 100% fatal and caused by nothing more than a humble protein. And not just any protein, a protein you already have in your body. Are you sweating yet? Good. Then settle in and listen to the amazing biology of this terrifying twisted proteinacious particle, the fascinating and fraught history that led to its discovery, and the current research on just how scared you need to be of prions in your brain.

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We've gotten pretty graphic on this podcast before, but this episode takes it to a whole new level. The omnipresent Staphylococcus aureus is a bacterium that wears many faces. Often that face is harmless, but Staph has the power to invade and infect nearly every organ of the body, leaving destruction (and a lot of pus) in its wake. While Staphylococcus aureus has been wreaking havoc on humans since well before the discovery of antibiotics, Methicillin-resistant Staph aureus (MRSA) has risen to terrifying prominence as resistance becomes the new norm. If any disease could make you run out (or stay in) and wash your hands, it’s this one. As always, you can find all of our sources at thispodcastwillkillyou.com/episodes. 

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What's the difference between a physician and a pretender, a magician and a poisoner? That's a question we'll try and answer in today's episode! We are very excited to bring you our first botanical poison crossover episode with our good friend Matt Candeias of the awesome podcast and website, In Defense of Plants. This week, we'll talk about Wolfsbane, or Monkshood, or Aconitum, or any of its various common names. The point is, get ready to learn about a pretty gnarly poison, its history, how it affects your body, and why on earth a plant would make such deadly compounds from an ecological and evolutionary perspective. 

Don't forget to check out our guest spot on In Defense of Plants where we talk about two plants commonly used in herbal remedies. You can find it on itunes or wherever you are listening to this pod. Check out Matt's website indefenseofplants.com and follow him on twitter @indfnsofplnts!

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The cherry on top of our first season, this bonus episode features more of Frank, Hillel, and Brryan's stories. Frank and Hillel, who live on opposite coasts of the US, share what it was like for them to live through through the AIDS crisis in the 1980s and 90s. Brryan and Hillel also share their experiences living with HIV today. We were incredibly moved by all three of their stories and are so honored to get to share them with you. We hope you enjoy it! 

If you'd like to hear more from Brryan, you can find him on social media @BrryanJackson, and also find his website here.  

If you'd like to learn more about Being Alive LA, the speaker's organization Hillel mentioned, you can find their website here.

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Welcome to This Podcast Will Kill You, your new favorite way to learn about disease biology, history, and stuff to gross out your dinner party guests. Join us October 31st for Episode 1 of Season 1- "The Plagues You Know"!

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