Parasitic Outbreak Spreads Across Multiple States
A diarrhea-causing parasite known as cyclosporiasis has infected at least 145 people across the United States, according to health officials. The outbreak is linked to contaminated raw produce, though specific sources have not yet been identified.
Cyclosporiasis is caused by the microscopic parasite Cyclospora cayetanensis, which infects the small intestine and leads to watery diarrhea, stomach cramps, nausea, and fatigue. Symptoms typically appear about a week after consuming contaminated food or water and can last for weeks if untreated.
Health Officials Urge Caution with Raw Produce
The U.S. Centers for Disease Control and Prevention (CDC) is investigating the outbreak, which spans multiple states. Health officials recommend thoroughly washing all raw fruits and vegetables before consumption to reduce the risk of infection. However, Cyclospora can be difficult to remove with standard washing because it adheres to produce surfaces.
“The best protection is to cook produce when possible, but if eating raw, wash it thoroughly under running water,” said a CDC spokesperson. “Consumers should also be aware that Cyclospora is resistant to chlorine-based sanitizers commonly used in commercial produce washing.”
Treatment and Prevention
Cyclosporiasis is treatable with specific antibiotics, such as trimethoprim-sulfamethoxazole. People experiencing prolonged diarrhea should seek medical attention and request testing for Cyclospora, as the parasite is not detected by routine stool tests.
To prevent infection, health authorities advise avoiding raw produce from areas with poor sanitation, though the current outbreak source remains under investigation. Imported produce, particularly from tropical regions, has been linked to past outbreaks.
“We are working with state and local health departments to trace the contaminated products,” the CDC added. “In the meantime, consumers should remain vigilant about food safety practices.”
Past Outbreaks and Ongoing Risks
Cyclosporiasis outbreaks have occurred in the U.S. before, often linked to imported fresh produce such as cilantro, raspberries, and salad mixes. In 2018, a large outbreak sickened over 2,000 people across multiple states. The current outbreak is smaller but highlights the ongoing risk of foodborne parasites.
Health officials continue to monitor the situation and will provide updates as more information becomes available. Anyone experiencing symptoms consistent with cyclosporiasis should contact their healthcare provider.



