It only took 3 days, and there's a positive student case at my school. 150 kids total. Rural-ish Maine.
Geez!
Oh, and none of the kids need to quarantine, despite being close contacts, because they were wearing masks all the time.... except when they're eating lunch in their classrooms, and snack in their classroom... because they were 6 feet apart during that time. 😬 🙄