When I was very young, we did have the smallpox vaccine in the UK in the early sixties. I have a small, barely noticeable scar, mum has a bigger scar. More recently, my doctor mentioned the scar on my arm and I said it was the smallpox vaccine. He said I was mistaken, I said I wasn't. It's a shame he didn't offer a bet on it because, a few minutes later, after having scrolled through my medical records, he confirmed that it was indeed the smallpox vaccine. My older brother remembers it all more clearly than I do, he fainted at the time