The Centers for Disease Control and Prevention has confirmed more than 1,600 cases of cyclosporiasis across the United States, with an additional 5,100 cases under investigation. The CDC issued an advisory this week to clinicians, health care providers and the public regarding the gastrointestinal illness.
Michigan is experiencing the highest concentration of cases, with 2,640 reported through Monday. Pennsylvania has confirmed between 11 and 30 cases, with investigations ongoing across the country. The outbreak has resulted in 141 hospitalizations across 34 states reporting cases so far this year.
Cyclosporiasis is caused by a microscopic parasite transmitted through consumption of contaminated food or water. The illness is not typically spread from person to person. Symptoms generally appear about one week after exposure and can persist for two to 14 days, manifesting as watery diarrhea, loss of appetite, weight loss, bloating, nausea and fatigue.
Health care providers are advised to request diagnostic testing for suspected cases, inquire about patients’ recent food and travel history, and follow appropriate treatment protocols. Patients should maintain proper hydration during illness.
The public is encouraged to contact a clinician if experiencing prolonged or watery diarrhea lasting more than several days. Thoroughly washing fresh produce under clean running water and practicing safe food handling can help prevent infection. Early investigation has identified lettuce as a common product appearing in case inquiries, according to Michigan’s chief medical executive.
The Hospital Association of Pennsylvania is monitoring developments and providing updates to members. The full CDC advisory is available online.
