What to know about the Cyclospora parasite spreading across the US
Published: July 9, 2026 at 3:25 PM
You’ve probably seen the headlines about a parasite spreading across the United States and making people sick, but what exactly is causing it?
“It’s actually quite difficult to find out the root cause because unlike the bacteria that infect the gut, such as E. coli or salmonella, this is a parasite. So, it mutates quite quickly and it is very hard to trace back to the originalveland Clinic
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Dr. Vyas said the parasite, officially known as Cyclospora, has previously been found in berries, bagged salad mix, pre-cut vegetables, and fresh herbs, such as basil and cilantro
While anyone is at risk for getting sick, those who are immunocompromised are especially vulnerable
It can take up to a week for symptoms to develop, which can include diarrhea, severe cramping, bloating, nausea and fatigue
In severe cases, a person may need antibiotics
However, most people can recover at home with plenty of rest and water
“If your symptoms are not getting better, if you feel worse, if you’re unable to keep down any fluids, if you have severe abdominal pain, your fever doesn’t go away, or you’re vomiting, you should seek medical attention,” she advised
Dr. Vyas said the best thing you can do for prevention is to thoroughly wash your fruits and vegetables under running water before eating
You should also wash your hands before and after preparing any food
Duval County has one recorded case in a patient between the ages of 25-29. That case was acquired outside of the United States
St. Johns County now has two cases. One confirmed case involved a patient between the ages of 70 and 74, with the infection believed to have been acquired in Florida. Another involved a patient between the ages of 35 and 39, also believed to have been acquired in Florida
Alachua County recorded one confirmed case in a patient between the ages of 40 and 44. The
Columbia County recorded one confirmed case in a patient between the ages of 40 and 44. That case was acquired outside of the United States
Flagler County recorded one confirmed case in a patient between the ages of 60 and 69. That case was also acquired outside of the United States
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