News Summary

Two new cases of measles have been confirmed in Michigan, leading health officials to issue warnings about potential exposure in Allegan and Macomb counties. The first case is linked to Allegan County and involved exposure at multiple locations in Kent County. The second case occurred at a medical office in Rochester Hills. Health authorities are urging anyone who may have been exposed to monitor for symptoms and consider vaccination, especially those in high-risk categories. The CDC reports a rise in measles cases nationwide, predominantly among unvaccinated individuals.

Allegan, Michigan – Two new cases of measles were reported in Michigan on June 6, prompting health officials to issue notices of possible exposure in Allegan and Macomb counties. One case involves a resident of Allegan County, while the other is linked to a resident of Macomb County.

The Allegan County resident potentially exposed others at three different locations in Kent County between June 2 and June 4. The second case, involving the Macomb County resident, resulted in exposure at a medical office building in Rochester Hills on June 3.

Specifically, the exposure in Rochester Hills occurred at the medical office building located at 3950 S. Rochester Road from 8 a.m. to 7:30 p.m. on June 3. Health authorities emphasized that measles can remain infectious in the air for up to two hours after an infected person leaves an area, raising concerns about those who were present during this timeframe.

The Oakland County Health Division has advised anyone who visited the medical office on June 3 to consider themselves exposed and to monitor for symptoms of measles for up to 21 days. Symptoms can take from 7 to 21 days to become apparent and may include high fever, cough, runny nose, conjunctivitis, and a characteristic rash.

Individuals at higher risk, such as pregnant women, unvaccinated children under the age of five, and those who are immunocompromised, should be particularly vigilant. Those who may have been exposed and fall into these high-risk categories might be eligible for immune globulin (IG) treatment if administered within six days after potential exposure.

As of June 5, the Centers for Disease Control and Prevention (CDC) reported a total of 1,168 measles cases across 33 states in 2025. This includes 137 hospitalizations and three deaths. In Michigan, there have now been 12 confirmed cases of measles this year, affecting several counties including Allegan, Oakland, Macomb, Kent, Montcalm, Ingham, and Marquette.

The CDC notes that 95% of reported cases this year involve unvaccinated individuals or those whose vaccination status is unknown. Since one dose of the MMR (measles, mumps, rubella) vaccine provides approximately 93% protection against measles, and two doses offer about 97% protection, health officials are stressing the importance of vaccination.

Vaccination rates in Michigan and across the United States have been declining, a trend amplified by misinformation regarding vaccines and a lack of public health resources. To combat this, the health division in Oakland County is actively providing MMR vaccinations during specified clinic hours.

Residents seeking more information about vaccinations can contact the Allegan County Health Department at (269) 673-5411 during business hours. The Kent County Health Department is also participating in monitoring and providing health resources related to measles exposure.

As health officials continue to respond to these cases, the focus remains on raising awareness about the importance of vaccinations to prevent further outbreaks and ensure community health safety.