Do I need a measles booster shot as an adult? 

People born before 1957 are generally considered to have presumed immunity because they were likely exposed to measles during childhood. The measles vaccine became widely available in the 1960s, so most people born after 1957 have received at least one dose of the vaccine.

Since 1991, the recommended schedule has included two doses of the MMR (measles, mumps, and rubella) vaccine for most children, which provides the highest level of protection.

If you're unsure of your vaccination status or have questions about your immunity, talk with your healthcare provider. They can order a simple blood test (called a measles immunity titer) to determine whether you are protected. If the test shows you are not protected, your provider can advise whether a booster dose is recommended based on your age, medical history, and individual health circumstances.