Ours has as well.

We have gone 13 weeks (plus the couple days this week of 5 day a week in person learning PK-8 (650 students). Grades 6-8 had a teacher test positive the 2nd day of school and went remote for 2 weeks (which was less because it was around Labor Day, and likely an over reaction since we were just starting). Since then, we have had 2 positive cases (one of which turned out to be a false positive) and no transmission within the school.

Similar to yours, we had a very specific, precise plan and seem to have followed it strictly. From conversations among parents, people seem to have been vigilant on keeping their children home when sick. As you note, the teachers in particular have been incredible.

It makes me all the more frustrated that the school has chosen to go remote proactively between Thanksgiving and Christmas (the Archdiocese had already mandated 2 remote weeks after the Christmas break).