Health Care

The U.S. has a parasite-fueled diarrhea outbreak. Take a look at Florida cases

The best way to reduce your risk of getting ill is to properly wash vegetables and fruit.
The best way to reduce your risk of getting ill is to properly wash vegetables and fruit.

Ongoing outbreaks involving a diarrhea-inducing parasite has left over 1,600 people sick across the country, including dozens of people in Florida.

Florida has reported 60 cases of the intestinal illness cyclosporiasis this year, with nearly all cases recorded starting in May, the beginning of cyclosporiasis outbreak season, according to preliminary state health department data.

Cyclosporiasis is caused by a tiny parasite that is usually found in contaminated food and water. And it often causes “watery diarrhea with frequent and sometimes explosive bowel movements,” according to the U.S. Centers for Disease Control and Prevention. Federal health officials say they haven’t been able to identify the source of the multi-state outbreak yet, though Michigan health officials have begun to point to lettuce and other salad greens as a possibility.

As of Monday, the CDC has confirmed 1,645 cases of cyclosporiasis and “is aware of more than 5,100 cases that require further analysis to confirm the illness as domestically acquired cyclosporiasis.”

How many cyclosporiasis cases were reported so far in Florida, including in Miami-Dade and Broward counties? Take a look:

READ MORE: Florida is seeing a rise in ‘explosive’ diarrhea. What to know about cyclosporiasis

Michelle Marchante
Miami Herald
Michelle Marchante covers the pulse of healthcare in South Florida and also the City of Coral Gables. Before that, she covered the COVID-19 pandemic, hurricanes, crime, education, entertainment and other topics in South Florida for the Herald as a breaking news reporter. She recently won first place in the health reporting category in the 2025 Sunshine State Awards for her coverage of Steward Health’s bankruptcy. An investigative series about the abrupt closure of a Miami heart transplant program led Michelle and her colleagues to be recognized as finalists in two 2024 Florida Sunshine State Award categories. She also won second place in the 73rd annual Green Eyeshade Awards for her consumer-focused healthcare stories and was part of the team of reporters who won a 2022 Pulitzer Prize for the Miami Herald’s breaking news coverage of the Surfside building collapse. Michelle graduated with honors from Florida International University and was a 2025 National Press Foundation Covering Workplace Mental Health fellow and a 2020-2021 Poynter-Koch Media & Journalism fellow.  Support my work with a digital subscription
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