I am sorry for your friend.
In still air, particulates will linger in the air for hours.
If he didn't wear a face mask, it is likely that he got infected in a room where people come and go even some time after the last visitor has left.
Our government tries to talk down the wisdom of wearing simple face masks like the orientals do for years and years.
In still air, particulates will linger in the air for hours.
If he didn't wear a face mask, it is likely that he got infected in a room where people come and go even some time after the last visitor has left.
Our government tries to talk down the wisdom of wearing simple face masks like the orientals do for years and years.