Cross-contamination risk via surfaces and touch might still remain in such tight spaces. Thanks for the articles about olfactory risks!

I have severe peanut allergy. If I have any exposure, my immune system stays hypersensitised for several weeks. During that period, even the smell of peanuts is enough for my throat to start swelling up. It won't develop into the full anaphylactic reaction but it is certainly bad enough to make me very unhappy.