With infections surging and hospitals strained, three new Covid-19 vaccines reportedly have +90% efficacy. What kind of real-world effectiveness can we expect from these vaccines? What will it take to roll them out? In this episode, Elan Journo talks with infectious disease expert Dr. Amesh Adalja about these promising vaccines, ongoing misinformation, and what lies ahead in the pandemic. Recorded Dec. 03, 2020.