Health officials are urging residents to take extra precautions after cases of cyclosporiasis, a foodborne illness caused by the Cyclospora parasite, rose sharply across Michigan amid a growing U.S. outbreak.
Cases of cyclosporiasis, an intestinal illness caused by the parasite Cyclospora cayetanensis, are increasing rapidly in the United States, with Michigan reporting a dramatic spike in infections.
According to the Michigan Department of Health and Human Services, the state had recorded 1,251 cases of cyclosporiasis by July 9, a significant increase from just 170 cases reported on June 30.
The rise comes as the Centers for Disease Control and Prevention continues monitoring the outbreak. The CDC’s latest national update, released on June 16, reported 145 confirmed cases across 17 states, with no infections reported in Michigan at that time.
What Is Cyclosporiasis?
Cyclosporiasis is a foodborne disease caused by the microscopic parasite Cyclospora cayetanensis, which spreads through contaminated food or water.
The illness commonly causes:
- Severe watery diarrhea
- Explosive bowel movements
- Stomach cramps
- Nausea
- Fatigue
- Loss of appetite
- Weight loss
While the infection is generally not life-threatening, symptoms can persist for weeks without proper treatment.
No Source Identified Yet
Michigan health officials said they have not identified a specific fresh produce supplier linked to the outbreak.
In a statement issued on July 4, authorities confirmed that investigations are ongoing but declined to provide further details beyond their initial announcement.
Health Officials Issue Safety Advice
To help reduce the risk of infection, health authorities have advised residents and restaurants—particularly in southeastern Michigan—to take extra precautions when handling fresh produce.
Officials recommend:
- Purchasing whole heads of lettuce instead of pre-packaged or prewashed salad mixes.
- Washing fresh fruits and vegetables thoroughly before consumption.
- Practicing good hand hygiene when preparing food.
- Drinking safe, clean water.
Public Health Monitoring Continues
State and federal health officials continue to investigate the outbreak while monitoring for additional cases.
Consumers experiencing prolonged diarrhea or other symptoms of cyclosporiasis are advised to seek medical attention, as the illness can usually be treated effectively with prescription medication.
The latest surge highlights the importance of food safety and continued surveillance as public health agencies work to identify the source of the outbreak and prevent further spread.
