Continued discussion of the outbreak in China. Plus: Are viruses alive? What is a virus (at the molecular level)? How is the new coronavirus distinct from other coronaviruses? What is the history of coronaviruses? Jonathan and Jonah offer an introduction to pathogenicity, lethality, and transmissibility, in general and as applied to COVID-19. Brian tries to stump them by asking if they can pair COVID-19 with a single optimistic thought.

Recorded March 9, 2020.