Michigan has officially reported measles outbreaks in the state.
The Michigan Department of Health and Human Services (MDHHS) and the Oakland County Health Department confirmed the first case of measles in Oakland County on March 14th.
The department announced another outbreak in Montcalm County on April 17 after three cases were confirmed.
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This was the first measles outbreak in Michigan since 2019, with a total of eight cases detected statewide in 2025.
As of April 10, 2025, the CDC has confirmed 712 cases of measles nationwide. (Allen J. Schaben / Los Angeles Times via Getty Images)
An outbreak refers to the incidence of three or more cases that share a source of infection, according to the Centers for Disease Control and Prevention.
Seven US states have identified outbreaks of measles this year, including Texas, New Mexico, Kansas, Ohio, Indiana, Pennsylvania and California, according to the state’s health department.
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As of April 10, 2025, the CDC has confirmed 712 cases of measles nationwide.
Dr. Natasha Baghdasalian, MDHHS’s chief medical executive, wrote in a statement that the Michigan outbreak “emphasizes how and how quickly contagious measles spreads.”
As of April 10, 2025, the CDC had confirmed 712 cases of measles nationwide.
“The MMR (measles, mumps, and rubella) vaccines still maintain our best protection, and two MMRs provide 97% protection against measles,” she said.
“We are urging all Michigan residents to check their vaccination records to ensure they are up to date with the MMR vaccine.”
“The MMR (measles, mumps, rubella) vaccines maintain our best defense, and two MMRs provide 97% protection against measles.” (Raquel Natalicchio/Houston Chronicle via Getty Images)
The Montcalm County outbreak is reportedly linked to a larger ongoing outbreak in Ontario, Canada.
MDHHS confirmed that as of April 17 there were no new public exposure sites to report on.
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Measles is very contagious. Especially for people who are not vaccinated, as most cases across the country occur in school-age children who are not vaccinated.
Most measles cases across the country occur in non-vaccinated school-age children. (Brandon Bell/Getty Images)
Common symptoms include fever, cough, red and watery eyes, runny nose, and rash that begins on the face and spreads across the rest of the body.
Symptoms can manifest 7-14 days after exposure, and MDHHS shares and repeats vaccinations as the best way to prevent infection.
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“MDHHS and MMDHD strongly encourage individuals aged 1 and older who have not received the MMR vaccine to do so quickly in order to protect themselves and others,” the department advised.
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“Vaccinations are available in doctors’ offices, most pharmacies and local health departments.”
