The Arkansas Department of Health (ADH) is reporting an increase in cases of cyclosporiasis, an intestinal illness caused by the microscopic parasite Cyclospora cayetanensis, in north central Arkansas. Marion and Boone counties each have fewer than 10 cases, while Benton County in northwest Arkansas leads the state with 50 reported cases. Statewide, a total of 79 cases have been confirmed in 2026 so far.
Cyclosporiasis is typically contracted by consuming food or water contaminated with the parasite. The illness is not usually life-threatening but can cause symptoms such as watery diarrhea, frequent bowel movements, and abdominal discomfort. Cases can last from several days to over a month if untreated, with symptoms sometimes recurring. Those experiencing symptoms are advised to contact their healthcare provider, as the illness is treated with trimethoprim-sulfamethoxazole. Rest and hydration are also recommended.
While the source of the outbreak remains under investigation, health officials have been focusing on shredded iceberg lettuce produced by Taylor Farms in central Mexico. The Food and Drug Administration (FDA) had earlier identified a positive lab result but later retracted it. Investigations are ongoing.
The ADH notes that the spread of Cyclospora is highly unlikely through person-to-person contact. Preventive measures include washing hands thoroughly before handling food, washing fruits and vegetables under running water, and refrigerating prepared produce within two hours. People with weakened immune systems or in poor health may be at higher risk for prolonged or severe illness.
According to ADH, the number of Cyclospora cases in Arkansas is higher this year compared to previous years, with the increase tied to an ongoing multistate outbreak. Cases of cyclosporiasis typically rise during spring and summer months.
For more information on food safety practices and parasite prevention, residents can contact the Arkansas Department of Health or their local healthcare providers.