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Questions About Measles

Protection against measles

Q: Am I protected against measles?

CDC considers you protected from measles if you have written documentation (records) showing at least one of the following:

You received two doses of measles-containing vaccine, and you are:
- A school-aged child (grades K-12)
- An adult who will be in a setting that poses a high risk for measles transmission (including students at post-high school education institutions, healthcare personnel, and international travelers)
You received one dose of measles-containing vaccine, and you are:
- A preschool-aged child
- An adult who will not be in a high-risk setting for measles transmission
A laboratory confirmed that you had measles at some point in your life.
A laboratory confirmed that you are immune to measles.
You were born before 1957.

For international travelers, CDC considers you protected from measles if you have written documentation (records) showing at least one of the following:

You received one dose of measles-containing vaccine, and you are an infant aged 6–11 m