The Windsor-Essex County Health Unit is warning residents about a sharp jump in cyclosporiasis cases in the region, linked to travel in Michigan. The health unit has counted 24 cases in Windsor-Essex so far in 2026, compared to the usual average of around three per year.
The alert comes as Michigan deals with a massive outbreak of the same stomach bug. The Centers for Disease Control and Prevention has reported 10,468 lab-confirmed domestically acquired cases in the U.S. since May 1, 2026. Michigan has reported 193 hospitalizations and two deaths as of July 30, 2026.
A multistate outbreak within the U.S., now involving 15 states, has been traced to shredded iceberg lettuce served at Taco Bell restaurants, supplied by Taylor Farms de Mexico. The contaminated lettuce was recalled after federal investigators linked it to illnesses across multiple states.
Cyclosporiasis is an intestinal illness caused by a tiny parasite. It can bring on watery diarrhea, stomach cramps, bloating, nausea, fatigue, and loss of appetite. The sickness is treatable with antibiotics, but symptoms can hang on for weeks without care.
The health unit is asking all Windsor-Essex residents, including those in Amherstburg, to take extra care when crossing the border this summer. That means being cautious with lettuce, salad greens, berries, grapes, and pre-packaged salads while in Michigan. Health officials suggest choosing cooked vegetables over raw ones whenever possible.
