The Michigan Department of Health and Human Services is investigating a statewide outbreak of cyclosporiasis that has produced 1,562 confirmed cases as of July 10, public health officials reported. Among those infected, 44 people have required hospitalization.
Where cases have been reported
Mid-Michigan counties have reported a range of cases, from single digits to the dozens. Local health departments are working with MDHHS to track illnesses, identify potential sources and advise residents on testing and treatment.
| County | Reported cases |
|---|---|
| Genesee | 35 |
| Gratiot | 17 |
| Huron | 26 |
| Isabella | 2 |
| Lapeer | 4 |
| Midland | 2 |
| Saginaw | 13 |
| Sanilac | 21 |
| Shiawassee | 82 |
| Tuscola | 12 |
What residents should know
Cyclospora is a microscopic parasite that can cause prolonged gastrointestinal illness. Symptoms most often include watery diarrhea that may be intermittent, along with stomach cramps, nausea, loss of appetite and fatigue. People experiencing sudden or ongoing diarrhea are urged to contact their health care provider for testing and treatment.
- Testing and treatment: MDHHS says cyclosporiasis is treated with antibiotics prescribed by a clinician; testing is necessary to confirm the diagnosis.
- Hydration: Rest and maintaining fluids are recommended to avoid dehydration during illness.
- Local guidance: For specific questions, contact your county health department; MDHHS updates total case counts Monday through Friday and posts hospitalizations and county data weekly on Thursdays.
Local response and next steps
Public health authorities are conducting case investigations to identify common exposures and potential food or water sources. Those inquiries often include interviews about recent travel, restaurant visits and food purchases. Officials emphasize quick reporting and testing so they can detect patterns and take action to prevent further spread.
Residents who are ill should avoid preparing food for others until cleared by a health care provider, and employers and institutions with symptomatic individuals should consult their local health department for guidance on exclusion and return-to-work or school criteria.
This outbreak continues to evolve. MDHHS and local health departments are the authoritative sources for the most recent case counts, hospitalizations and public guidance.
