US Cyclosporiasis Cases Exceed 4,100, Setting New Record

The number of confirmed cyclosporiasis cases in the United States has exceeded 4,100 this year, surpassing all previous records, according to the Centers for Disease Control and Prevention (CDC). The CDC's tally, updated this week, indicates a significant increase in reported infections caused by the *Cyclospora cayetanensis* parasite. Confirming a single case of cyclosporiasis can be a lengthy process, often taking several weeks from initial diagnosis to final verification.

Cyclosporiasis is an intestinal illness transmitted to humans through contaminated food or water. Symptoms typically include diarrhea, loss of appetite, weight loss, stomach cramps, bloating, gas, nausea, and fatigue. In some cases, vomiting can also occur. The illness can be treated with antibiotics, but without treatment, symptoms can persist for weeks or even months. The CDC monitors these cases to identify potential outbreaks and sources of contamination.

While the CDC has not yet identified the specific source or sources of the current outbreak, investigations typically involve tracing the consumption patterns of affected individuals. Common sources in past outbreaks have included fresh produce such as basil, cilantro, raspberries, and pre-packaged salad mixes. Public health officials emphasize the importance of thorough washing of all fresh fruits and vegetables, even those with peels, as contamination can occur before they reach the consumer.

The record-breaking number of cases this year highlights the ongoing challenge of preventing and controlling foodborne illnesses. The CDC continues to work with state and local health departments to investigate the current situation, provide guidance to healthcare providers, and inform the public about potential risks and preventive measures. Further updates on the investigation and potential sources are expected as more data becomes available.