Why do some COVID-19 patients infect many others, whereas most don’t spread the virus at all? | Science | AAAS

Why do some COVID-19 patients infect many others, whereas most don’t spread the virus at all?

s COVID-19 reporting is supported by the Pulitzer Center. When 61 people met for a choir practice in a church in Mount Vernon, Washington, on 10 March, everything seemed normal. For 2.5 hours the chorists sang, snacked on cookies and oranges, and sang some more.