I had measles when I was a young lad along with Chicken pox. Forget which disease but my Mom went and hung towels over all of the mirrors because every time I looked at myself I freaked out. LOL.
If my memory serves me correctly, my doctor put a notice on our front door warning folks who came to the house that a person in the house had measles or chicken pox.
Writing off the cuff, I would say that a by-product of the aliens crossing our southern border is some supposedly eradicated diseases.
My question to much more educated folks than I on this subject; since I had measles, fifty-six years ago, do I need to get inoculated?