Episode: Ep186: The Mystery of the Viral Dose

Why does Covid-19 make some people so much sicker than others? Risk factors and pre-existing conditions are part of it, but could there still be another factor? CNN Chief Medical Correspondent Dr. Sanjay Gupta talks to infectious disease expert Dr. Monica Gandhi about the possible role of viral dose in this pandemic. To learn more about how CNN protects listener privacy, visit cnn.com/privacy