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Cyclosporiasis cases in Michigan rise to 10,773 in ongoing outbreak

By Thomson Reuters Jul 31, 2026 | 10:09 AM

July 31 (Reuters) – Michigan reported 10,773 cases linked to a cyclosporiasis outbreak on Friday, up 387 from the previous day, the state health department said in ​its latest update.

Cases of the intestinal infection have ‌risen steadily across the U.S., with the outbreak resulting in 193 hospitalizations. No deaths have been reported.

Here are some details:

• Cyclospora, a parasite, causes cyclosporiasis, which can lead to diarrhea, nausea and other gastrointestinal symptoms.

• ‌An ​investigation by the U.S. Food and ⁠Drug Administration has linked ⁠the outbreak, which has expanded to nine states, to iceberg lettuce sourced from privately held Taylor Farms operations in central Mexico, but authorities are still looking for other ​potential sources.

• U.S. consumers have cut back on lettuce purchases following the multistate outbreak, as concerns over food safety ⁠and uncertainty about affected products ⁠weigh on demand.

• As of July 28, the ​Centers for Disease Control and Prevention had recorded 6,707 laboratory-confirmed ​cases of cyclosporiasis since May 1, with more than ‌11,500 additional suspected cases still awaiting confirmation or further investigation.

• Data from healthcare analytics company Truveta showed the rate of cyclosporiasis diagnoses this July was more than 11 times higher ⁠than the average seen in July over the past eight years. More than one in five patients ended up in the ⁠emergency department within ‌two weeks of diagnosis, while nearly one ⁠in eight were hospitalized.

• Cuts across federal health ​agencies ‌have complicated the government’s ability to respond ​to foodborne ⁠disease outbreaks, former CDC officials and food safety experts said.

• CDC’s surveillance updates do not include probable cases. State data may include probable and confirmed cases, resulting in higher case counts than what CDC reports.

(Reporting by Sahil Pandey in Bengaluru; Edited ​by Tasim Zahid)