A person who lives their life in a pathological fear of a germ that won't affect them.
"The Covidite refused to use his brain in dealing with a germ, and was so stupid as to drivealone in his car wearing a mask, as though that would keep him from giving himself the germ."
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.