02/03/2025
We're getting a lot of patients asking about getting measles vaccine boosters. The short answer is one shot is okay. Two is better. Three is unnecessary.
Here is a less brief overview:
If you were born before 1957, you are likely immune to measles.
If you received a measles vaccine from 1957-1968, you may have received a vaccine that is not as effective and should either consider getting tested for immunity or get an effective shot.
If you were vaccinated between 1968-1989, you would have received only one measles vaccine. One shot provides 93% protection against infection and near 100% protection against severe measles. You can either check your immunity or get another shot.
If you were vaccinated according to schedule, in 1989, a second MMR was recommended at 4. Two measles vaccines reduce the risk of infection by 97% and near 100% protection against severe measles.
If you are reasonably confident that you got two measles vaccines, you definitely do not need another.
If you do not think you did, we can either check your measles IgG level (which would tell us if you're immune or not) or give you another.