My dad needed a bone marrow transplant back in 2012. Our whole family had to have a meeting with the doctors beforehand about proper sanitary behaviors and besides the obvious hand washing, the two that i didn’t think about before were Lysol spraying shoes before we come in the house and avoiding usage of anything “reusable” like bags to store his clothes, food or medicine.
It’s been with me since.
Very practical.
On a similar note, when I come home from shopping, I go straight upstairs and change my clothes and shoes so I don’t accidentally track in anything my dogs could catch.
The single use bags from the stores become trash bags every two weeks and never used for anything else.