27 points
13 points
It does, and you should wear it. But if you are immunocompromised (like me) you also need to protect your eyes, and wash your clothes, skin, and hair following a trip out in public. The days when people were wearing masks were wonderful.
12 points
All true! But it’s not all-or-nothing either - reducing the viral load of the initial infection actually reduces the severity of the symptoms by reducing the load on the immune system. An infection picked up from clothes will be much less severe than one directly inhaled into the lungs.