To add some real-world data to that: In the supermarkets I visit, all over town, the use of carts/drag-carts is forced, they're generally not cleaned by staff,

To add some real-world data to that: In the supermarkets I visit, all over town, the use of carts/drag-carts is forced, they're generally not cleaned by staff, and in the aisles there's a general awareness of avoiding each other and particularly staff, but it's not observed diligently. I'd say the biggest vector of disease is people not washing their hands before or after visiting the supermarket, and the free-for-all aisle traversal. It would probably take one infected person to sneeze in an aisle to infect lots of other people traveling through said aisle. or infected employees touching various products with their snotty hands. I can't tell if that's significant, but as a general rule I assume supermarkets are places to visit as infrequently as possible, and to wash my hands before and after. For the most part it does seem people are changing their behavior though, around here. we pass each other with appropriate distance, and we stand in line with appropriate distance.