In this episode of Saving the World from Bad Ideas, Mark Lynas speaks with Dr Seth Berkley, infectious disease epidemiologist, former CEO of Gavi, and co-founder of COVAX, about what the world got right and wrong during COVID-19.

They discuss vaccine equity, pandemic preparedness, the politicisation of public health, and why the world remains dangerously vulnerable to future outbreaks. From the rapid development of mRNA vaccines to the rise of vaccine disinformation and the growing threat of H5N1 bird flu, this conversation is a sobering reminder that pandemics do not end just because societies stop wanting to talk about them.

In the afternoon on Friday, March 27, Georgetown University’s Medical and Dental Building turned into a site of organized chaos as an unknown infection struck. Dozens of people hustled through the hallways, trying to earn enough money to buy food and stay healthy. Public health staffers tried their best to execute their roles, some with little prior experience, the atmosphere creating a trial by fire. Government instructions were scant, and media reports were often conflicting. It was a palpable frenzy of activity and cooperation.
---

Dr Seth Berkley is an epidemiologist and global health leader whose career has been shaped by one central problem: vaccines save lives, but only if people can actually get them.

His 40-year career has spanned the global, from helping to build Uganda’s first HIV surveillance system and founding the International AIDS Vaccine Initiative; to leading Gavi, the Vaccine Alliance for more than a decade – overseeing the immunisation of hundreds of millions of children worldwide. And when COVID-19 struck, Seth co-founded COVAX, the global initiative designed to stop wealthy nations monopolising vaccines.

In conversation with Professor Jim Al-Khalili, Seth discusses the highs and lows of his globe-trotting career - from saving millions of young lives through vaccine distribution, to setting his own shattered leg after a climbing accident in Namibia - and addresses the huge challenge of tackling vaccine scepticism.