This past year, scientists racing to stop the novel coronavirus delivered vaccines at a pace and scale the world has never seen before. Adrian Hill, director of Oxford University's vaccine research institute, recounts how he and his team developed the AstraZeneca vaccine. He explains why the challenges were as much about logistics as science, and predicts how the rapid creation of all COVID vaccines could change the pace of medical progress—even in realms beyond vaccines. This episode was recorded on March 8, 2021.

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