Health officials are urging consumers to take extra precautions with fresh produce after more than 800 cases of cyclosporiasis, a foodborne illness caused by a microscopic parasite, were reported across the United States.
According to the Centers for Disease Control and Prevention, 843 people had become ill as of July 9. Eighty-six people have been hospitalized, but no deaths have been reported. Patients range in age from 5 to 86, with a median age of 42.
Cyclosporiasis is caused by the parasite *Cyclospora cayetanensis*. Unlike common foodborne illnesses caused by bacteria such as Salmonella or *E. coli*, the infection can cause gastrointestinal symptoms that last for weeks or even longer if left untreated.
The illness typically peaks between May and the end of August. Health officials say there is no evidence that a single nationwide outbreak is responsible for the current cases, and federal, state and local agencies are investigating multiple clusters and possible sources of contamination.
The parasite is most often spread by consuming contaminated fresh produce rather than through person-to-person contact. Foods linked to recent outbreaks include bagged salad kits, raspberries, green onions, cilantro and basil.
Symptoms commonly include prolonged or severe diarrhea, along with stomach cramps, nausea, fatigue, loss of appetite and weight loss. Because the illness can resemble viral or bacterial stomach infections, doctors may not recognize it without a specialized stool test.
Medical experts say the infection is treatable with a specific antibiotic, but diagnosis is important because standard treatments for other causes of diarrhea may not be effective.
Health officials recommend thoroughly washing fruits and vegetables before eating or preparing them, although washing alone may not remove all parasites. Consumers should also wash their hands before handling food, scrub firm produce such as melons and cucumbers with a clean brush, remove bruised or damaged portions of fruits and vegetables, and clean and sanitize cutting boards, utensils and food preparation surfaces.
Cut or peeled produce should be refrigerated promptly.
Officials emphasize there is no reason for alarm, but consumers should remain vigilant during the summer produce season. Anyone experiencing severe or persistent diarrhea, particularly lasting more than a few days, should contact a healthcare provider, especially if symptoms develop after eating fresh produce.
Source: USA Today