Michigan’s first measles outbreak in over five years has been reported in Montcalm County. The county’s third case is part of a larger outbreak linked to Ontario, Canada, which saw 109 new cases confirmed on the same day. Residents who may have been exposed or are showing symptoms should call their healthcare provider before seeking treatment.
Measles is highly contagious and can remain airborne for up to two hours after an infected person leaves. It’s estimated that 90% of people without immunity will become infected if they come into close contact with someone carrying the virus.
The outbreak highlights how quickly measles can spread, according to Dr. Natasha Bagdasarian, chief medical executive. “We urge all Michigan residents to check their vaccination records to ensure they are up to date with the MMR vaccine.”
Nationwide, at least 712 confirmed cases have been reported across 25 states, with complications such as ear infections, pneumonia, and brain swelling occurring in up to 30% of infected individuals.
Measles symptoms include a high fever, cough, runny nose, and red eyes, followed by tiny white spots on the inner cheeks, gums, and roof of the mouth. The disease can cause a rash that starts on the face and spreads to other parts of the body. Vaccination is available, with two doses of the MMR shot being about 97% effective against measles.
For more information on vaccination and immunization, visit Michigan’s webpage or ivaccinate.org.
Source: https://www.mlive.com/news/2025/04/michigan-reports-first-measles-outbreak-since-2019.html