Infectious diseases and microbial resistance represent major concerns in developing nations. The combination of globalization with the expanded use of antibiotics in resource-constrained environments is worsening the problem. In fact, hospital acquired infection rates in some regions are three times greater than in the United States and as much as 30 percent of all such infections are antimicrobial resistant. HDT Bio is developing immune activators and RNA-based vaccines to address this challenge with cost-effective and accessible medicines. We spoke to Chris Pirie, co-founder and chief operating officer of HDT Bio, about the problem the company is seeking to address, its platform technology for producing safe and stable RNA vaccines, and the potential to use the same platform to produce immunotherapies for cancer.