Why Do Some COVID-19 Patients Infect Many Others, Whereas Most Don’t Spread the Virus At All? Guest Reporter: Jason S Zielonka, MD One of the key parameters in COVID-19 pandemic epidemiology has been to define the spread metrics, basically identifying how a host spreads the virus to uninfected individuals. The pattern of spread can impact … Continue reading Why Do Some COVID-19 Patients Infect Many Others, Whereas Most Don’t Spread the Virus At All?