@overholt In the UK here: I *had* measles, as a child (sometime in the late 1950s/early 60s); I've never had mumps; and I got the first iteration of the Rubella vaccine. So last year I asked my GP if I could have the MMR, and got it! (Also flu, shingles, and covid vaccinations...) Better safe than sorry, and (so far ) I've never had a bad reaction to a vaccine, apart from a slightly sore arm!