Think Measles

Measles is a rare disease in Minnesota and in the U.S.; however, measles is still common in other parts of the world. Most measles cases occurring in Minnesota result from someone traveling to or from countries where measles is common, and who are infectious with measles after arriving in Minnesota. Measles can spread easily to unvaccinated persons. Maintaining high immunization rates is essential to preventing measles.

Total confirmed or probable measles cases in Minnesota in 2024 (As of March 1): 3

Learn more about Measles HERE

Two doses of MMR vaccine are about 97% effective at preventing measles.

Check if your child is due for MMR vaccine

Check your child’s vaccination record,
Contact their healthcare provider, or
Visit the immunization scheduler for newborn to 6-year-old children

Measles Vaccination and Disease History Assumptions by Age

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

*Source: https://www.health.state.mn.us/diseases/measles/hcp/assump.htm