[cba123]

I think they can then effectively disinfect each store, each day.

[familyop]

"I think they can then effectively disinfect each store, each day."

That would require huge teams of people to remove everything from all of the shelves, spray and scrub the shelves and products, then to put all of the items back on the shelves. Impossible, not to mention the fact that many products are in packages that shouldn't be soaked.

The floors are scrubbed with an electric scrubber overnight, though.

[familyop]

Those stores also have heating systems that don’t allow much ventilation from the outdoors, because such systems are more efficient in regards to cost.