The Michigan Department of Health and Human Services on Wednesday confirmed a large outbreak of the intestinal parasite cyclospora, reporting 992 confirmed cases across the state and 40 hospitalizations. No deaths have been verified in connection with the outbreak.
What officials are saying
“The source of the outbreak has not been identified, and MDHHS continues to work with local health departments and partners to investigate cases and provide updates as more information becomes available.”
State health officials said the total represents a sharp increase since last week, when the department had documented fewer than 200 confirmed cases. The spike makes this one of the larger cyclospora outbreaks reported in Michigan and among the more significant clusters nationally in recent years.
How cyclospora spreads and who is at risk
Cyclospora is a microscopic parasite that infects the intestines and typically causes prolonged, watery diarrhea. The Centers for Disease Control and Prevention says people become ill after ingesting food or water contaminated with feces carrying the organism. It generally takes between two days and two weeks after exposure for symptoms to appear.
Officials noted person-to-person spread is uncommon, and outbreaks have frequently been linked to fresh produce. Because routine testing for foodborne illness does not always detect cyclospora, health experts believe infections are undercounted.
Practical information for residents
- If you are experiencing persistent diarrhea, stomach cramps, or related symptoms, seek medical attention and inform your provider you may have been exposed to cyclospora.
- State and local health departments are collecting information from cases and working to identify any common food items or suppliers.
- Follow standard food-safety practices: wash produce, avoid unpasteurized beverages, and follow guidance from your local health department.
MDHHS said investigators are coordinating with local health departments and federal partners to track cases, interview patients and analyze any commonalities that could point to a contaminated food or water source. As of the latest update, officials have not linked the Michigan cases to a single national outbreak or single product.
| Metric | Number |
|---|---|
| Confirmed cases | 992 |
| Hospitalizations | 40 |
| Confirmed deaths | 0 |
Health authorities say most cyclospora infections are not life-threatening but can last for weeks if untreated. The department urged anyone who falls ill after eating fresh produce or drinking possibly contaminated water to contact their health care provider and local health department for testing and guidance.
I will continue to follow updates from MDHHS and local health departments as investigators work to pinpoint the source and issue any targeted consumer advisories.
Malik Turner is the Michigan correspondent for News Block.
