More to the point, does your school know? I got to wondering, since I see it mentioned in other threads that people don't want to send their children to school with unvaccinated peers. Does your employer ask about your vaccine history?

I have never been asked, working at public or nonpublic schools. At my current school, they offer the flu shot one day in the fall, and the nurse encourages us to get it, but it's certainly not required.