Adar Poonawalla: How to vaccinate the world

Stephen Sackur speaks to Adar Poonawalla, the CEO of the biggest vaccine producer in the world, Serum Institute of India. He went all-in on a production deal with Astrazeneca, and for many of us, the jab we get will have been made by him. He’s a super-rich vaccine visionary; is he driven by more than profit?