I would guess tb tests are pretty common for school enrollment.
I always test positive for TB. I have to have an x-ray to prove I don’t have it
That is state by state. Here in NM “health professionals” determine which students may be at risk and they are the only ones tested. Which means unless they know a student may have been exposed to it, they are not tested.
What amazes me is we are a border state, yet no medical requirements beyond vaccination is required for students unless they are playing sports. Students that show up from other countries whether legal or illegal are even allowed in school and given time to get their vaccinations up to date.
I grew up in Arizona and attended school in the 60s,70s...we had TB skin tests every year, we got extra vaccinations at times- for diptheria once I remember. Not sure what AZ is doing now but NM is very lax.