Well, it theoretically might work if you could stay home the entire time except for 20 quick trips into public, but how practical is that for most folks?
Does that mean if there is a pandemic, you're still going to go into work where the employees are dropping like flies, and down to the bar on Fri/Sat to pick up some girl, continue to do all your usual shopping, , etc?
IOW, you would treat it as the usual winter flu?
I don't know... hitting the local meat market (not butcher) on the weekend in a gas mask sounds both funny and ludicrous.
But perhaps I am misunderstanding you?
Sue