North Carolina Reports Over 300 Cyclosporiasis Cases With Wake County Surge

Cyclosporiasis Surge in Wake County and Across North Carolina

Public health officials in North Carolina are grappling with a sharp increase in cases of cyclosporiasis, an intestinal illness caused by the microscopic parasite Cyclospora cayetanensis. As of mid-July 2026, the state has recorded more than 300 confirmed cases, with the bulk of these infections concentrated in Wake County. The state health department reported that at least 14 people across North Carolina have required hospitalization due to the severity of the illness.

View this post on Instagram about Wake County, Taco Bell

Investigations into Potential Sources and Regional Differences

A major point of confusion for the public has been the distinction between the North Carolina surge and a concurrent, larger outbreak being tracked by federal agencies. According to the North Carolina Department of Health and Human Services (NCDHHS), the local spike does not appear to be associated with the national outbreak involving Taco Bell restaurants, which the CDC linked to shredded iceberg lettuce.

In North Carolina, investigators are looking at commonly consumed fresh produce, such as cilantro, parsley, and lettuce. However, state officials emphasize that identifying these ingredients in patient interviews does not confirm them as the source of infection. Most patients don’t get sick for at least a week, and by the time we interview them, and by the time we try to identify the source, no one can really remember where they ate or what they ate, said Dr. Christopher Chao, medical director at WakeMed Urgent Care, in comments reported by WRAL.

Clinical Guidance and Challenges in Detection

Medical professionals advise that while the illness is often self-limiting, it can persist for weeks and, in some cases, requires antibiotic treatment. Dr. Jonathan Schwartzman, medical director at Pardee Urgent Care, noted that while many cases improve after a few days, patients should seek immediate care if they encounter specific warning signs. If they’re having significant abdominal pain, there’s blood in their stool, they’re unable to keep any kind of fluids down, they’re vomiting, those kind of red flags, I’d say they get in sooner, Schwartzman told WLOS.

Diagnostic testing presents another hurdle. Furthermore, the genomic analysis of Cyclospora is significantly more complex than that of bacterial pathogens like E. coli or Salmonella.

Surveillance Gaps and Future Prevention

The ability to track such outbreaks has been complicated by recent shifts in public health surveillance. CTVNews that the CDC scaled back its “FoodNet” surveillance system in 2025, moving Cyclospora from a primary focus to an optional reporting category. Former CDC Director Dr. Robert Redfield criticized these funding and staff cuts, stating that robust surveillance is essential for the early identification of foodborne illness.

For now, health departments in North Carolina are collaborating with the FDA and the state’s Department of Agriculture to coordinate ingredient tracebacks and food history interviews. Public health officials continue to recommend that consumers wash all fresh produce thoroughly, although they caution that the microscopic nature of the parasite makes it difficult to ensure produce is entirely safe. Residents experiencing persistent gastrointestinal distress are encouraged to consult their healthcare provider to determine if diagnostic testing is appropriate.