Does measles require booster shots or only one vaccination for the lifetime? how often for booster if needed?

Measles: vaccination requires 2 shots, 1 initial vaccine and 1 booster at least 28 days later. The routine vaccine schedule is 1 vaccine at 12 months of age and 1 booster at 4-6 years of age. For anyone older than 4-6 years old who has never had a vaccine or only had 1, the schedule would be as I mentioned above.

Usually not needed.: As a general rule, most adults in the United States who were either born before 1957 or who had two doses of MMR as a child will likely not need a measles booster shot as an adult. There are more details to this story, and the complete recommendations can be found at www.CDC.gov/vaccines.