The virus can get into air ducts...
The scientific study proving this is near the end of the first video at this web site:
https://www.youtube.com/channel/UCD2-QVBQi48RRQTD4Jhxu8w
So, if anyone who is shedding the virus walks into a store, the virus can make its way into an air duct of the store, then infect other folks for days...
Now you can panic... :-)
It is likely most of us will get the virus—get your immune system in as good a shape as possible to increase the likelihood you will only have mild symptoms—lots of sun, fresh air, exercise, any kind of fun...then your favorite foods...morale is key imho.
“Now you can panic... :-)”
I told you, I panicked last Tuesday, as planned. No plans to panic again, until a week from Wednesday.