Susan, an interesting and unusually presented article. Good questions indeed.
From my perspective, I think that the various governments are foolhardy to lift restrictions so soon and I am not sure if a vaccine will be developed soon enough, nor if eveyone will be able to get vaccinated.
I would assume a bunker mentality and keep a good supply of dry/unperishable items on hand and it wouldn’t hurt to keep a spare supply of drinking was too.
The hens idea is a good one, but having had chickens, I can tell you they are a lot of trouble. Not sure I would do it again unless I had no choice.