Another Measles Case Confirmed In Southeast MI, New Exposure Sites

MONROE COUNTY, MI — Monroe County health officials confirmed a measles case Thursday.

Health officials did not release any other details about the case, but warned residents about possible exposure at multiple locations.

Those locations include the St. Joseph Church of Ida on Van Aiken Street between 6 and 9:30 p.m. on March 28 and the Trinity Health IHA Urgent Care on East Arkona Road in Milan between 11:30 a.m. and 5:30 p.m. on March 31.

Health officials ask anyone who was at the following locations during those times to watch for measles symptoms.

"This case is a reminder of how easily measles can spread among those who lack immunity," Monroe County Health Department Health Officer/Director Jamie Dean said. "Anyone not vaccinated is likely to become ill if exposed. We strongly encourage our community to educate themselves about their immunization status and to get vaccinated if they are not protected."

This is the eighth confirmed measles case in Michigan so far in 2026. It also comes amid an outbreak in Washtenaw County.

Symptoms of measles usually begin within seven to 14 days after exposure and can appear up to 21 days after exposure. They include a high fever, cough, runny nose, red and watery eyes, tiny white spots on the inner cheeks and rashes, officials said.

If symptoms develop, residents are urged to not visit their doctor or emergency room unless they have called ahead so facilities can take precautions to prevent exposure to other people.

Health officials said a single dose of the MMR vaccine is roughly 93 percent effective at preventing measles; two doses are about 97 percent effective. The vaccine is also effective if given within 72 hours of exposure to help prevent illness.

According to the CDC, 91.6 percent of Michiganders in 2025 were vaccinated against measles, down from 92.1 percent the previous year.