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Cyclosporiasis: California now reporting cases of diarrheal illness
KTVU • • health
Key Points:
- At least 31 states, including California, are investigating potential cyclosporiasis cases, with the CDC reporting 843 confirmed domestic cases and over 1,500 under analysis since May 1, 2026.
- California has reported between one to ten cases, while Michigan remains one of the hardest-hit states with 1,562 cases and 44 hospitalizations as of July 10.
- Cyclosporiasis is a gastrointestinal illness caused by the Cyclospora parasite, typically spread through contaminated food or water, causing symptoms such as watery diarrhea, loss of appetite, and weight loss.
- No specific produce source has been linked to the current outbreak, but previous outbreaks have been associated with items like bagged salad mixes, fresh cilantro, basil, raspberries, snow peas, and green onions.
- Health officials recommend thoroughly rinsing produce under running water, rubbing surfaces, considering frozen produce, and cooking food to reduce the risk of infection.
