Episode: Ep78: Disease Detectives

Across the country, local officials are hiring people to track down anyone who may have been exposed to Covid-19. CNN Chief Medical Correspondent Dr. Sanjay Gupta talks to Dr. Syra Madad, an epidemiologist and special pathogens expert, about the importance and process of contact tracing.  To learn more about how CNN protects listener privacy, visit cnn.com/privacy