If there is a super deadly virus out there making people drop dead, what the fuck is a mask going to to stop it?
As for not spreading it to other people - let me think, here's an idea for people, cough and sneeze into your sleeve, that's actually advice doctors have given for many years.
I wear one to menards when I have to go there. They force you to & some stuff only they carry. Otherwise no, never have worn a mask.