Portrait artist Fran Monks introduces us to her compelling photo portraits of COVID vaccine trial volunteers, taken over Zoom during lockdown.
Professor Sir Andrew Pollard, Chief Investigator for the clinical trials of the Oxford AstraZeneca vaccine, shares his perspective on the extraordinary scientific story.
Joining the conversation: Vaccine trial volunteer Dr Helen Salisbury. Dr Silke Ackermann, Director of the History of Science Museum, Oxford.
Hosting the conversation: Economist, journalist, and broadcaster Tim Harford.