M.S. Bellows, Jr.Also, even if you were vaccinated as a child, you nevertheless might not be immune to measles if you were born between 1957 (when a vaccine came out that didn't always work) and 1968 (when a better vaccine was released). I just got a "childhood" Measles Mumps Rubella ("MMR") vaccine at age 63 because measles is continuing to spread and I'm in that unsweet spot.
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