NEW YORK (PIX11) — A foodborne illness is making waves across New York City as health officials say cases have spiked approximately threefold compared to this time last year.

The cyclosporiasis outbreak is caused by a microscopic parasite that can contaminate food and water, including raspberries, lettuce, and other produce.

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The most common symptom reported is watery diarrhea, which can be frequent. Other symptoms can include a loss of appetite, weight loss, bloating, nausea, and fatigue.

Symptoms typically begin around one week after exposure; however, they can occur between 2 and 14 days after exposure, according to the Centers for Disease Control and Prevention.

The CDC warns that symptoms can relapse, and the remitting-relapsing course can last from a few days to a month or longer.

While severe, the CDC states that the illness is “not usually life-threatening.”

Anyone with prolonged or watery diarrhea lasting more than a few days should see a clinician.

How can I prevent getting cyclosporiasis?

Health officials advise washing hands with soap and water before and after handling or preparing raw fruits and vegetables.

When preparing produce, consumers should:

wash all fruits and vegetables thoroughly under running water before eating, cutting, or cooking

scrub firm fruits and vegetables, such as melons and cucumbers, with a clean produce brush

cut away any damaged or bruised areas on fruits and vegetables before preparing and eating

What is the current number of cyclosporiasis cases in New York?

As of Tuesday, the New York State Department of Health and the New York City Health Department say 381 cases have been reported in New York City so far this year, approximately a threefold increase compared with the same period in 2025.

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