I got into a graduate program in the fall. I'm in my mid 30's. Since I'll be covered by student health, they want copies of my health records, including immunization records. Yes, from when I was 2. And not just dates, the actual records.
I'm not having a lot of luck tracking these down. So far:
my undergrad college destroys them after 10 years
my pediatrician retired
hospital I was born in-closed
hospital that took its place--closing at the end of this month, but they're looking
health dept. where I was born--stuck on voicemail. Maybe they're all out sick

So, yeah. If I can't get records, they have to do a titer (?) which is an expensive blood test, to prove I'm immunized, or, according to them, "you could get reimmunized"
Well, yes, I could, except NO WAY!