Expert: Coronavirus Isn't 'Alive,' But Still Harms

"A virus usually enters the cell through a protein our cells have on their surface. COVID-19 -- and SARS [severe acute respiratory syndrome] before that -- use a protein called ACE2, which is on the surface of the cells in our lung, throat and intestinal tract,"  Mendenhall said.

from WebMD Health https://ift.tt/3btp5MQ