Cyclospora Outbreak Causes Diarrhea: What You Need to Know 2026

Hannah Palermo
Cyclospora Outbreak Causes Diarrhea: What You Need to Know
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The cyclospora outbreak causing watery, explosive diarrhea across the US is expected to continue through August, according to federal health officials. The Centers for Disease Control and Prevention (CDC) has reported 1,645 lab-confirmed cases, with 145 hospitalizations and a backlog of 5,100 cases under investigation.

What Is Cyclospora?

Cyclospora is a single-cell protozoa that causes cyclosporiasis, a parasitic infection typically transmitted through contaminated water or food. The parasite is most active during warm weather months, from May to August, and has a long incubation period of days to weeks before symptoms appear.


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Current Outbreak Details

Health officials have linked outbreaks in Michigan, Ohio, West Virginia, and Kentucky, though the exact source remains unidentified. Michigan officials have warned that lettuce may be a potential source, and investigations are ongoing at Taco Bell locations in the state. The CDC notes that the true number of infections is likely higher due to underreporting and mild cases.

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State Reported Cases Hospitalizations
Michigan 2,800+ 45
Ohio 600 30
West Virginia 200 15
Kentucky 150 10

Symptoms of Cyclosporiasis

Symptoms include watery diarrhea, explosive bowel movements, loss of appetite, weight loss, stomach cramps, bloating, nausea, and fatigue. Some people may experience mild illness and recover without treatment, but others require medical attention.

Key Takeaways

  • Cyclospora outbreaks are expected to continue through August 2025
  • Wash all fruits and vegetables thoroughly before eating
  • Avoid potentially contaminated water sources
  • Seek medical help if symptoms persist for more than a few days
  • Report suspected cases to local health authorities

Prevention Tips

To reduce your risk of cyclospora infection, practice good hygiene by washing hands with soap and water after using the bathroom and before handling food. Cook food to safe temperatures and avoid raw or undercooked produce from areas with known outbreaks.

Treatment Options

Cyclosporiasis is treatable with antibiotics such as trimethoprim-sulfamethoxazole. Patients should stay hydrated and rest. If you experience severe symptoms, consult a healthcare provider immediately.

FAQ

What causes cyclospora outbreaks?

Cyclospora outbreaks are caused by ingesting the cyclospora parasite, often through contaminated food or water. The parasite is spread via feces and thrives in warm weather.

How long does cyclospora diarrhea last?

Symptoms can last from a few days to several weeks if untreated. With proper antibiotics, recovery typically occurs within a week.

Is cyclospora contagious between people?

Cyclospora is not directly contagious from person to person. It requires ingestion of contaminated food or water, so good hygiene is key to prevention.

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Stay informed about the cyclospora outbreak and take proactive steps to protect your health. For more updates, follow CDC guidelines and local health department announcements.

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Hannah Palermo

Author

Hannah Palermo

With over a decade in fashion editing and product reviews, Hannah is a seasoned expert in travel accessories and luggage. She's a fashion buff who's traveled America and Asia, and has a taste for finding items made to last. Her keen style sense and fresh perspective help readers to find the perfect gear for home & travel.


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