Cyclosporiasis Clusters Reported in 18 US States

At least 18 states are actively monitoring clusters of cyclosporiasis, an intestinal illness commonly presenting with severe diarrhea. Several of these states are reporting significantly higher case numbers than typically observed for this period. Michigan, for instance, has noted an increase in cases.

Cyclosporiasis is caused by the parasite Cyclospora cayetanensis, which is transmitted through contaminated food or water. Symptoms usually appear between 2 to 14 days after consuming contaminated items and can include watery diarrhea, loss of appetite, weight loss, cramping, bloating, gas, nausea, and fatigue. Some individuals may also experience vomiting and low-grade fever. The illness can persist for weeks or even months if left untreated.

Public health officials are working to identify the source of the outbreaks, which often involves investigating food supply chains. Common sources of contamination include fresh produce such as berries, herbs, and leafy greens. The Centers for Disease Control and Prevention (CDC) provides guidance and resources for state and local health departments to investigate and respond to these outbreaks. While the exact number of cases across all 18 states is still being compiled, the elevated incidence suggests a widespread issue requiring careful public health surveillance and intervention.

Treatment for cyclosporiasis typically involves antibiotics, such as trimethoprim-sulfamethoxazole. Prompt diagnosis and treatment are important to alleviate symptoms and prevent prolonged illness. Public awareness regarding food safety practices, including thorough washing of produce, is also a key component in preventing future infections. The ongoing monitoring by health departments aims to contain the spread and understand the contributing factors to these current clusters.