Cyclosporiasis is an illness you get from the parasite Cyclospora cayetanensis. It causes watery, and sometimes explosive, diarrhea and other stomach problems. It usually spreads from contaminated water or food. Treatment typically includes antibiotics.

health officials in Michigan identified a possible source of an outbreak of cyclosporiasis, an illness resulting from infection with the parasite cyclospora, which is transmitted through food and water contaminated with feces.

“Current results point to lettuce or salad greens as a potential source for this outbreak,”
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Lettuce and salad mixes, as well as other types of fresh produce including raspberries, basil, cilantro, fruit mixes, snow peas and snap peas, have been implicated in previous cyclospora outbreaks in the United States.
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As of Monday evening, July 13, 2026, health officials in Michigan had reported 2,640 cases and 44 hospitalizations — a 69 percent increase in cases from those reported on Friday,
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The C.D.C.’s latest figures include at least 843 confirmed illnesses across 31 states, and 86 hospitalizations.

Getting more up-to-date information from Michigan and the New York Times than the Federal Government's CDC (Centers for Disease Control and Prevention).

Cyclosporiasis outbreaks are occurring in approx. 30 states, including Tennessee.