Ottawa County reports first measles case in over 30 years
More than 1,700 cases have been reported in the U.S. this year after seeing the most cases in 2025 — 2,144 — than any year since 1991.
OTTAWA COUNTY — Health officials have confirmed the first case of measles in Ottawa County since 1991, marking a rare appearance of the highly contagious respiratory virus.
More than 1,700 cases have been reported in the U.S. this year after seeing the most cases in 2025 — 2,144 — than any year since 1991.
Experts say cases are likely significantly undercounted as many go unreported.
The Ottawa County Department of Public Health, working alongside state health officials, announced the case involving a county resident. Although no public exposure sites have been identified yet, officials are currently tracing individuals who may have come into direct contact with the infected person.
Measles is notorious for its ease of transmission. According to health data, one infected individual can spread the virus to roughly 90% of non-immune people in their immediate vicinity.
"Measles is highly contagious, but it's also highly preventable," said Dr. Gwen Unzicker, medical director for OCDPH. "Two doses of the MMR vaccine provide about 97% protection. Most people in Ottawa County are already protected, but if you're unsure, now is the time to check your records."
Understanding immunity, symptoms
Public health officials consider an individual immune if they meet one of the following criteria:
- Vaccination: Two doses of the MMR vaccine for adults and K-12 students; one dose for preschoolers.
- History: Prior documentation of having had the disease.
- Age: Anyone born before 1957 is generally presumed immune.
Symptoms typically manifest 7-21 days after exposure. Residents are urged to monitor for:
- High fever: Often spiking above 104 degrees.
- Respiratory distress: Cough, runny nose, and red, watery eyes.
- The signature rash: A red, blotchy rash that begins on the face and migrates downward.
Health officials are urging a "call first" policy to prevent further spread. If you suspect you have contracted the virus, do not walk directly into a clinic or emergency room.
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"If symptoms develop, call ahead before going to a clinic or urgent care," the OCDPH advised in a statement. "This allows staff to take precautions and protects other patients from being exposed."
Residents seeking to verify their vaccination status or report concerns can contact the OCDPH at 616-396-5266 or visit miottawa.org/measles for updates on potential public exposure sites.
— Submitted by the Ottawa County Department of Public Health. To submit a news tip, email newsroom@ottawanewsnetwork.org.
