Cyclosporiasis Cases Rise in Pittsburgh Amid National Surge

Pittsburgh, PA, July 30, 2026 —

Officials in Pittsburgh are reporting an increase in cases of cyclosporiasis, a foodborne illness caused by the parasite Cyclospora cayetanensis. This local rise aligns with a broader surge of the infection observed across the United States.

Cyclosporiasis is typically contracted by consuming food or water contaminated with the parasite. Symptoms often include diarrhea, loss of appetite, weight loss, abdominal cramps, bloating, gas, nausea, and fatigue. Some individuals may also experience vomiting, muscle aches, and fever. Symptoms can appear days or even weeks after consumption of contaminated food or water and can last for weeks or months if not treated.

Public health authorities are working to identify the source of the increase in both Pittsburgh and the nation. While specific sources have not yet been identified in Pittsburgh, outbreaks in other regions have often been linked to contaminated fresh produce, such as berries, basil, and cilantro.

The Centers for Disease Control and Prevention (CDC) has noted an uptick in cyclosporiasis cases nationwide, prompting increased vigilance among health departments. Investigations are ongoing to pinpoint common sources of infection that may be affecting multiple states.

Health officials recommend that individuals experiencing symptoms consistent with cyclosporiasis consult a healthcare provider. Prompt diagnosis and treatment, typically with antibiotics, are important to alleviate symptoms and prevent prolonged illness.

Further updates on the investigation into the cause of the increased cyclosporiasis cases in Pittsburgh and the broader national trend are expected as more information becomes available.

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