The Arkansas Department of Health (ADH) has confirmed that cases of cyclosporiasis have been reported in Mississippi County, adding to the state's growing total during an ongoing multistate outbreak.
As of August 12, ADH has documented 263 lab-confirmed cases of the illness statewide. While the bulk of cases remain concentrated in the northwest region of Arkansas, the northeast has also seen isolated reports in several counties, each with fewer than 10 cases.
In Northwest Arkansas, Benton County leads with 151 confirmed cases, followed by Boone County with 25, Washington County with 24, and Carroll County with 11.
ADH officials noted that Cyclospora cases typically rise during the spring and summer months, but the 2026 numbers reflect a significant increase compared to previous years. "After an investigation, it was determined that the increase in cases in Arkansas is, in part, associated with the ongoing multistate outbreak," an ADH statement said.
The U.S. Food and Drug Administration (FDA) has linked this outbreak to contaminated iceberg lettuce, with additional details available through the FDA’s latest investigation report.
Cyclospora infection occurs when people consume food or water contaminated with fecal material carrying the parasite. Symptoms, which may begin one to two weeks after exposure, often include watery diarrhea, which could be severe and frequent. Other symptoms may include cramping, bloating, and fatigue.
Health officials recommend the following precautions to reduce the risk of infection:
- Wash all fresh produce thoroughly before eating. - Avoid consuming food or water that may have been contaminated. - Practice good hygiene, especially handwashing, before preparing and eating meals.
More details on cyclosporiasis and how to protect against it can be found on the ADH website or through the Centers for Disease Control and Prevention’s (CDC) resources.
Residents with concerns about Cyclospora or those exhibiting symptoms are encouraged to contact their healthcare providers.