When the Covid-19 virus swept throughout China and then the world in early 2020, the idea that a vaccine could be available in the near future seemed far-fetched. But within the year, there were several vaccine candidates approved and distributed in quick succession. How did we get to the vaccine finish line so quickly? We discuss the trials and tribulations in the race for a vaccine with Gregory Zuckerman, author of “A Shot to Save the World: The Inside Story of the Life-or-Death Race for a Covid-19 Vaccine.

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