Parasite Causes Explosive Diarrhea in Hundreds Across U.S.

A microscopic parasite, Cyclospora cayetanensis, is causing significant health concerns across the United States, infecting hundreds and leading to severe gastrointestinal distress. The Centers for Disease Control and Prevention (CDC) reports that the parasite primarily targets the small intestine, resulting in watery diarrhea, frequent, and sometimes explosive bowel movements.

While Cyclospora outbreaks are typically associated with the summer months and linked to fresh produce like berries and herbs, the current situation in the U.S. has raised alarms. Health officials in Michigan have registered over 1,500 cases, a stark contrast to the usual 50 cases per year. Cases have been reported in 31 states, indicating a widespread issue, though not every state is experiencing a full-blown outbreak.

Epidemiologists are investigating the source of the current surge, as the exact cause and potential links between cases remain unclear. The CDC notes that untreated infections can last from several days to over a month. Although generally not fatal, Cyclosporiasis can lead to severe dehydration, prompting health authorities to urge caution and proper diagnosis, which requires multiple stool samples.

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Cyclospora infects the small intestine and typically causes watery diarrhea with frequent and sometimes explosive bowel movements.