HCA Florida Brandon Hospital's Infection Prevention team is closely monitoring a multistate outbreak of cyclosporiasis, a foodborne intestinal illness caused by the parasite Cyclospora cayetanensis, as health officials continue investigating cases reported across the country.
According to the U.S. Centers for Disease Control and Prevention (CDC), 145 cases have been reported across 17 states between May 1 and June 16, 2026, including 36 reported cases in Florida as of June 27. Hillsborough County has reported two confirmed cases.
Investigators have not identified a single grower, supplier or specific produce item responsible for the current outbreak. Cyclosporiasis is typically linked to fresh produce contaminated before it reaches consumers. Physicians say symptoms usually develop two to 14 days after exposure and may include frequent watery diarrhea, abdominal cramping, bloating, nausea, loss of appetite, weight loss and low-grade fever. While the illness is not spread from person to person, untreated infections can last for several weeks or longer.
"Our Infection Prevention team is actively monitoring this outbreak and staying in close communication with public health agencies to ensure we are prepared to respond to any local developments," said Isis Lamphier, Director of Infection Prevention at Brandon Hospital. "While there is no indication of widespread local transmission, we encourage our community to take simple precautions, including thoroughly washing fresh produce under running water and cooking fruits and vegetables whenever possible. These everyday food safety practices can significantly reduce the risk of illness."
Although investigators have not linked the current outbreak to a specific food, previous outbreaks have been associated with bagged salad mixes, fresh cilantro, basil, raspberries, snow peas and green onions.
"Higher temperatures during the spring and summer months create conditions when cyclosporiasis cases are more commonly identified," said Dr. Adelor Zamora, infectious disease specialist at Brandon Hospital. "Anyone experiencing persistent or severe diarrhea, especially after consuming fresh produce, should seek medical evaluation. Cyclosporiasis is treatable with antibiotics, and early diagnosis can help shorten the course of illness and prevent complications."
Brandon Hospital physicians encourage the public to reduce their risk by following these food safety recommendations:
- Wash all fresh fruits and vegetables thoroughly under clean, running water before eating, cutting or preparing them.
- When possible, cook produce, as heat is the most effective way to eliminate the parasite.
- Consider purchasing whole heads of lettuce instead of bagged salad mixes and discard the outer leaves before washing.
- Seek medical care if you develop persistent diarrhea, dehydration, or symptoms lasting more than a few days.
For the latest information on cyclosporiasis, visit the CDC's website.