The Washtenaw County Health Department and the Michigan Department of Health and Human Services have confirmed a third case of measles in Washtenaw County, with officials now classifying the situation as an outbreak.
An outbreak is defined as three or more related cases. All three cases reported in the county are linked and have been identified since mid-March.
Health officials said the two newest cases are unvaccinated individuals who were in close contact with the first case, which was associated with out-of-state travel. There are no new public exposure locations tied to the additional cases.
Officials continue to advise anyone who may have been at previously identified exposure sites to monitor for symptoms for 21 days after potential exposure.
Measles is a highly contagious virus that spreads through the air and can infect people before symptoms appear. Symptoms typically develop seven to 14 days after exposure but can take up to 21 days.
Symptoms may include fever, cough, runny nose, red or watery eyes and a rash that usually begins on the face and spreads downward.
Health officials are urging residents to check their vaccination status, especially ahead of spring break travel, noting that two doses of the measles, mumps and rubella (MMR) vaccine are about 97% effective at preventing measles.
Anyone who develops symptoms is advised to call ahead before visiting a doctor’s office, urgent care or emergency room so precautions can be taken to avoid exposing others.
More information, including updates and previously identified exposure locations, is available on the Washtenaw County Health Department website. washtenaw.org/health
8123 Main St Suite 200 Dexter, MI 48130
