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Cyclospora parasite cases surge nationwide
10 Jul
Summary
- Alcohol-resistant cyclospora parasite causes watery, explosive diarrhea.
- Over 1,000 cases reported in Michigan alone so far.
- Symptoms include nausea, headache, and loss of appetite.

A significant rise in cyclospora infections, a parasite resistant to alcohol-based sanitizers, is currently impacting multiple states. Over 1,000 cases have been identified in Michigan, with infections also reported in at least 17 other states, including Illinois, New York, and Texas. The symptoms associated with this parasitic illness include watery and explosive diarrhea, abdominal cramping, nausea, bloating, headache, and loss of appetite. Public health advisories emphasize vigilant hygiene practices, such as washing hands with soap and water before food preparation and thoroughly washing all produce. Alcohol-based sanitizers are ineffective against cyclospora. The Centers for Disease Control and Prevention is investigating the cause of these infections, which they believe stem from multiple contamination sources. While cyclospora cases commonly increase during spring and summer, the current outbreak is noted as unusually large. Past outbreaks have been linked to fresh produce like raspberries, basil, and leafy greens. Illnesses can mimic common stomach bugs, making diagnosis challenging, though antibiotics can aid recovery if prescribed. Untreated symptoms like chronic diarrhea may persist for months.