Understanding COVID-19, Part 2: SARS-CoV-2 and the Immune System

"SARS-CoV-2 and the Immune System" is the second video in the four-part series, "Understanding COVID-19." In this series, Ragon Director Bruce Walker, MD, and Harvard postdoctoral fellow Zuri Sullivan, PhD, explain how scientist responded to COVID-19, from identifying the virus to developing effective vaccines.