Measles

Measles.

If you were born before 1957, you are considered immune.
If you were born in 1957 or after, the recommendations get a bit more complex:
-If you know you have received two measles vaccines, you’re all set. It was not until 1996 that a second measles booster vaccine started being recommended. So most immunized adults born in ’57 or after have only received one measles vaccine.
-If you don’t know for sure your measles vaccine status, get another one.
-If you are a health care worker, college student, or international traveler, make sure you have had two measles vaccines.
-It is not harmful to get extra measles vaccine(s) if you’ve already been immunized but have no way to know your prior immunization status.
-Another option is a blood test to check for immunity, called a measles titer.