@DrewDad,
When I was twelve, somehow my grade school and my parents got together and thought I'd be just the one to pick up and clean stuff for the kindergarten. (Teach shy princess to work..) Shortly thereafter, I got scarlet fever, which can be serious serious, and was quarantined for two weeks. My room and the bathroom, various doctor visits. Luckily, those were the years at near the end of radio serials - Perry Mason, Mr. and Mrs. North, The Shadow. I managed to live fairly happily.
What am I getting at.. check your own vaccination history. Me, I've had scarlet fever, but never one of the measles (which one? I don't remember now, but probably the regular long one), chickenpox, whooping cough (newly prevalent across the nation) and have never been vaccinated for them either. In the meantime, one of my cousins' husband died of the measles, at age 42.
(alternately, I've been vaccinated for some really exotic stuff, back when I was a bacteriology major)