There was a separate measles vaccine when I was a younger kid, I believe. I’m guessing I got that because I never had the measles and don’t remember it going around in my peer group. I did get the mumps and my siblings did too, I think.

I eventually got the MMR when I was middle school or high school age and I think it may have even been at a school vaccination clinic set up for the students. There is a subset of vaccine-hesitant parents who object to the MMR but say they would vaccinate for measles if a measles-only vaccine was still available.