Michigan is facing a significant outbreak of the diarrheal parasite Cyclospora cayetanensis, with 1,251 cases reported as of July 9. The Michigan Department of Health and Human Services (MDHHS) indicates that 44 individuals have been hospitalized. The outbreak, which began with two cases on June 22, has seen a rapid increase, particularly in the southeastern region of the state.
Rapid Increase in Cases
The outbreak's escalation was notable, with 572 cases documented by July 4. On July 8, 239 cases were reported in a single day, marking the highest daily total to date. The latest tally includes 159 new cases confirmed on July 9. Health officials are working diligently to identify the source of the outbreak, which appears to be linked to contaminated food and water.
Understanding Cyclospora and Its Transmission
Cyclospora cayetanensis is a microscopic protozoan that infects humans primarily through contaminated produce and occasionally through tainted drinking water. The parasite is shed in feces, and it can take one to two weeks in the environment to become infectious. Symptoms typically manifest about a week after infection, although they can appear anywhere from two days to over two weeks later. The main symptom is “watery diarrhea with frequent and sometimes explosive bowel movements.”
Other symptoms may include nausea, fatigue, cramping, and bloating. Without treatment, the diarrhea can persist for a month or longer, leading to significant health risks such as dehydration. Individuals experiencing symptoms are encouraged to consult healthcare providers to determine if it’s cyclosporiasis, which can be treated with the antimicrobial combination trimethoprim-sulfamethoxazole, known as Bactrim.
