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 know personally 5 people who had it! 2 w compromised lung function, 2 of 5 were in hospital. They have all recovered! No HCQ+ used. Recovered on their own!