Teeming masses of bacteria are in your mouth, on your skin, up your nose and on the surface of your eye, in your mouth, deep in your bowels, and well, just about everywhere. These bacteria are possible sources of coronavirus.
Along with sheltering in place, social distancing and frequent hand washing, donning a cloth facial covering that envelops the nose and mouth represents one of the few tools available for curbing the spread of the coronavirus.
