The Arkansas Department of Health (ADH) reports a significant surge in Cyclospora infections across the state, with lab-confirmed cases reaching 252 as of Monday, August 10. This marks a sharp increase compared to previous years, with cases mainly concentrated in the northwest region of the state but also appearing in several Northeast Arkansas counties.
Benton County accounts for the largest share, with 147 confirmed cases. Boone County has reported 24 cases, Washington County 22, and Carroll County 11. Local counties in Northeast Arkansas are each reporting fewer than 10 confirmed cases.
Cyclospora, a microscopic parasite, spreads when individuals consume food or water contaminated with feces. Symptoms, which typically emerge 1 to 2 weeks after exposure, can include watery diarrhea, frequent bowel movements, cramping, nausea, fatigue, and fever. According to the ADH, the parasite often sees higher transmission rates during the spring and summer months, but the number of cases reported in 2026 is unusually high.
ADH officials linked the spike in Arkansas infections to a multistate outbreak currently under investigation by the U.S. Food and Drug Administration (FDA). A preliminary FDA investigation has identified iceberg lettuce as a potential source in nine states, including Arkansas. More details on the outbreak are available on the FDA’s website.
The ADH advises residents to take precautions to prevent Cyclospora infections. Recommendations include thoroughly washing produce, avoiding food and beverages that could be contaminated, and practicing good hygiene during food preparation.
Additional guidance and updates on Cyclospora outbreaks are available on the ADH and CDC websites.