Before social media and 24-hour news, one man ran a vaccine field trial involving 1.8 million children, ended a terror that was paralyzing the globe, and became so famous that pilots announced his presence over the intercom. This episode is a deep dive into Jonas Salk, the New York virologist who built the inactivated polio vaccine and then quietly turned his attention to a much bigger frontier.

We trace his path from East Harlem through NYU Medical School to the University of Pittsburgh, the wartime influenza work that gave him the playbook for inactivated viruses, and the audacious scaling logic of the 1954 polio field trial. We unpack the famous Edward R. Murrow interview where he refused to patent the vaccine ("could you patent the sun?"), the rapid global rollout that eliminated domestic polio transmission in the U.S. in less th ...