Queueing and COVID19

Last update: May 1, 2020.
The global pandemic has resulted in a number of [new] queueing situations. If you would like to send me (M. Hlynka, U of Windsor) an email at hlynka@uwindsor.ca and add your comments, please do so. I will include names and e-mail addresses unless instructed otherwise. If you want to read others' comments, see below (if anyone chooses to comment).
Warning: Someone (not me) may steal any ideas you mention, and others may ask to do joint research with you. Let's start.