US Cyclospora Outbreak Spreads, Over 7,000 Cases Reported

An outbreak of the parasitic infection Cyclospora is spreading across the United States, with health authorities confirming over 7,000 cases since May 1. The Centers for Disease Control and Prevention (CDC) reports that infections have been identified or are being investigated in 34 states.

The most heavily affected states are Michigan and Ohio, though cases have also been linked to West Virginia and Kentucky. Health officials in Michigan are focusing on leafy greens, particularly lettuce, as the likely source of the outbreak. However, they stress that other food items have not yet been ruled out, and the specific type of lettuce, grower, or supplier remains unidentified.

The infection, known as cyclosporiasis, leads to prolonged watery diarrhea, stomach cramps, nausea, fatigue, and loss of appetite. According to the CDC, approximately one in eleven infected individuals have required hospitalization, highlighting the severity of the illness.

Cyclospora is a microscopic parasite transmitted through contaminated food or water. Symptoms typically appear about a week after consuming contaminated items and can persist for weeks or even months if left untreated. Public health agencies are continuing to investigate the source to prevent further spread and advise individuals experiencing symptoms to seek medical attention.