[doliveira]

I was under the impression that the aerosol route was just common knowledge, but last week my state government (in Brazil) was doing deep cleaning in schools that have been closed for like 100 days. Yeah, good thing you're deep cleaning probably the last place on earth with no coronavirus! Now we'll only have problems if people want to breath in there... Such a stupid security theater.

[spanhandler]

Staff may go to schools even when they're closed for students. That may not have been the case there, but cleaning a "closed" school isn't necessarily ridiculous.

[mr__y]

Somewhat ironically, people doing that cleaning might spread coronavirus into those places if they happen to be asymptomatic carriers