Michigan reports 6571 cyclosporiasis cases in ongoing outbreak

July 21, 2026 11:15 AM EDT

July 21 (Reuters) - Michigan health ‌officials reported ​6,571 ​cases linked to an outbreak of cyclosporiasis on Tuesday, an increase of 423 cases since its last ‌update on Monday.

The outbreak in Michigan has resulted ⁠in 102 hospitalizations, according to the state health department's latest update, with ‌no deaths reported.

Here are some ‌details:

• Cyclosporiasis is an intestinal infection that can be contracted by consuming food, typically raw fruits and vegetables, or ​water contaminated with feces, according to the U.S. Centers for Disease Control and Prevention.

• Cases of cyclosporiasis, an ⁠intestinal infection caused by the Cyclospora parasite that can trigger diarrhea, nausea and other ​gastrointestinal symptoms, have risen steadily in recent months across the United States, according to the CDC.

• ​The CDC said on its website ‌dated July 13 that 1,645 people across 34 states had contracted the parasite, and 141 of ⁠them had been hospitalized. At that time, the agency said more than 5,100 additional cases required further analysis and confirmation.

• The ⁠FDA said on Monday its basis for linking Taylor Farms' central Mexico ​lettuce to the outbreak remained unchanged, even after a Cyclospora-positive border-surveillance sample was later determined to be a false positive, citing traceback and ‌epidemiological evidence.

• Michigan's disproportionately high case count likely reflects distribution patterns, with the state receiving a ‌substantial portion of the contaminated shipment, said Gerardo Lopez, an ⁠associate professor and extension ‌specialist in STEM, food ​safety and environmental microbiology at the University of Arizona.

(Reporting by Siddhi Mahatole in Bengaluru; Editing by Tasim ‌Zahid)



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