07/06/2026
Michigan is seeing a rise in cyclosporiasis, a sickness caused by a parasite found on some fresh produce. Most cases are in southeast Michigan.
No food or brand has been named as the source yet. In past outbreaks, the parasite has turned up on bagged salad mixes, cilantro, basil, raspberries, snow peas, and green onions.
OCDPH is monitoring the situation closely, and if cases are reported here, we will follow our usual process to track whether the case is related to the outbreak. Our recommendations are the same regardless of where the cases are occurring, and you can lower your risk with a few simple steps:
- Cook produce when you can. Heat kills the parasite.
- Wash all fresh produce under running water, even if you'll peel it.
- Skip pre-washed bagged salads and mixes for now. Buy whole heads of lettuce, toss the outer leaves, and rinse the rest.
- Wash your hands before and after handling food. Clean cutting boards, counters, and utensils.
Watch for sudden, watery diarrhea, cramps, and low appetite. Symptoms can start days to weeks after eating and may come and go. It's treatable, so call your health care provider if you're sick, especially if you're very young, older, or have a weak immune system.
Full guidance from MDHHS below. 👇
As cyclosporiasis cases continue to rise, MDHHS is providing additional recommendations to help prevent foodborne illness related to fresh produce. As of July 4, 2026, no specific produce grower/supplier, or specific produce type has been identified as the source of the outbreak.
Cyclosporiasis is an intestinal illness caused by the Cyclospora parasite. People can become infected by consuming food or water that contains the parasite.
More info: https://bit.ly/4gYSinP
