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Infectious Disease Epidemiology, Prevention and Control Division
651-201-5414
Measles Vaccination and Disease History Assumptions by Age
Use the table to help determine the age groups most likely under-immunized against measles.
| Current Age, Grade or Year of Birth | Assumptions | Rationale for Assumptions |
| Age less than 12 months | Not vaccinated; may have maternal antibody |
First dose given at 12-15 months |
| Age 12 through 15 months | Probably not yet vaccinated |
First dose given at 12-15 months |
| Age 16 months until grade K | Age-appropriately vaccinated with 1 dose |
School and child care requirement |
| Grades K through 6 | Two doses of vaccine likely |
School requirement for 2nd dose at entrance to K beginning in 2004 |
| Born 1979 or later | Two doses of vaccine likely |
School requirement for 2nd dose at 7th grade in 1992 and grades 7-12 in 1996 |
| Born 1963 - 1978 | Possibly 1 dose; however, maybe not with current or optimally efficacious vaccine |
The first effective live-virus vaccine was licensed in 1968 |
| Born 1957 - 1962 | Unlikely to have been vaccinated; possible history of disease |
Older than grade K when live-virus vaccine licensed |
| Born before 1957 | Likely history of disease |
Measles disease prevalent during childhood of this age cohort |
Last Updated: 08/01/2023