Ohio health officials report 177 confirmed cases of cyclosporiasis this year, with 171 of those infections occurring in the past month, mostly since June 20, according to the Ohio Department of Health (ODH). Lucas and Wood Counties make up a plurality of cyclosporiasis cases in the state, with 30 and 20 infections respectively. While no deaths have been reported, 28 patients have required hospitalization as state and federal agencies continue to investigate the outbreak.
Why are case numbers rising in Ohio?
The recent surge in cyclosporiasis, a gastrointestinal illness, aligns with a broader regional trend. While Ohio has recorded 177 cases, neighboring Michigan has reported nearly 700 infections, according to ODH data. Dr. Bruce Vanderhoff, director of the Ohio Department of Health, noted that while the illness is serious, the current mortality rate remains consistent with historical data, which shows no deaths linked to the illness in the state.
What are the symptoms of cyclosporiasis?
The primary symptom of the infection is watery diarrhea. According to the Ohio Department of Health, other common clinical signs include:
- Bloating or cramping
- Loss of appetite
Health officials advise that because the illness can cause dehydration, individuals experiencing these symptoms should seek emergency medical care.
How can you protect yourself from infection?
Preventing cyclosporiasis requires careful food handling practices. Dr. Vanderhoff urges residents to take extra precautions when handling fruits and vegetables.

What is the current status of the investigation?
The Ohio Department of Health is collaborating with local health departments, neighboring states, and federal partners to investigate the outbreak.
Frequently Asked Questions
Is cyclosporiasis contagious?
No.
How is the illness treated?
Should I avoid all fresh produce?
Health officials recommend extra precautions when handling and washing fruits and vegetables to minimize risk.
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