Since they also say 1/2 of us don’t know.we have it and inadvertently spreading it, makes all the more sense people in closed/crowded public spaces should mask it. Med folk would be leas exposed and need less PPE then. win-win
“Since they also say 1/2 of us don’t know we have it and inadvertently spreading it, makes all the more sense people in closed/crowded public spaces should mask it.”
How far and fast do breath-sourced aerosols travel in the air? Just one unknowingly infected person in the room coughing or sneezing one time...