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NYC Battles Explosive Diarrhea Outbreak
3 Aug
Summary
- A parasitic infection called cyclosporiasis is spreading rapidly in NYC.
- The illness causes severe watery diarrhea and can last over a month.
- As of July 27, 511 cases were reported in New York City since May 1.

New York City is grappling with a growing number of cyclosporiasis infections, a parasitic illness affecting the intestines. This condition, caused by the Cyclospora cayetanensis parasite, typically manifests with severe watery diarrhea and can lead to prolonged symptoms, potentially lasting over a month and even relapsing.
As of July 27, the city's health department confirmed 511 cases of cyclosporiasis since May 1. The exact cause of this surge is still under investigation. The parasite is known to spread through contaminated food or drinking water, and past outbreaks have been linked to fresh produce.
Symptoms usually appear about a week after infection, though the incubation period can range from two days to two weeks. Health officials recommend preventive measures, such as thorough washing of produce, to mitigate the spread of this intestinal illness.