Daniel Griffin provides a clinical report on COVID-19, including vaccines, Alan summarizes a vaccine webinar on the most advanced US trials, a nidovirus from snapping turtles, longevity of memory B cells in recovered patients, and listener email.

Daniel Griffin provides a clinical report on COVID-19, then former FDA Chief of Staff to the Commissioner Denise Esposito joins us to explain the challenges in approving vaccines, antiviral drugs, and diagnostic tests during a pandemic, followed by answers to listener questions.