Measles is one of the most contagious and dangerous of the children's viral diseases that result in a rash.
It is easy to assume that, because the US vaccinates children against the disease, it is non-existent. Travelers can import Measles. Many seniors were never vaccinated against the disease, and very young children may still be too young for vaccination. The pathway is there.
Once you have had Measles, you cannot get it again.

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