NYC Parasite Outbreak: 'Poop Disease' Spreads

New York City is experiencing a significant surge in cyclosporiasis cases, with hundreds reported so far this year. This parasitic infection, known for causing distressing gastrointestinal symptoms like explosive diarrhea, has prompted investigations by both state and city health departments.

The number of reported cases in the city has tripled compared to the same period in 2025, highlighting the growing concern. Cyclosporiasis is caused by the Cyclospora cayetanensis parasite, which infects the small intestine.

Symptoms of the infection, which can last for weeks or even recur, typically appear about a week after exposure. The parasite spreads through contaminated food or drinking water, with fresh produce being a common vehicle for transmission in the U.S.

Preventative measures, as advised by the NYC Health Department, are crucial for mitigating the spread of this infection. Individuals are urged to take precautions to protect themselves during this ongoing health concern.