Cyclospora: What Jefferson County Residents Should Know
The Jefferson County Health Department is seeing more cases of Cyclospora in our area. Our Communicable Disease team is investigating these cases and sharing information to help keep residents safe.
What Is Cyclospora?
Cyclospora is a parasite that can cause an intestinal illness called cyclosporiasis.
People can get sick after eating food or drinking water that is contaminated with the parasite.
Cyclospora does not spread directly from one person to another.
Symptoms usually start 1 to 2 weeks after a person is exposed.
Symptoms of Cyclospora
People with Cyclospora may have:
- Watery diarrhea
- Loss of appetite
- Weight loss
- Bloating
- Nausea
- Tiredness or fatigue
Symptoms can be different for each person. Without treatment, symptoms may last for days or even weeks.
Cyclospora Cases in Jefferson County
As of August 6, 2026, there have been 111 reported cases of cyclosporiasis in Jefferson County.
The Jefferson County Health Department is continuing to:
- Investigate reported cases
- Track illness trends
- Work with healthcare providers and public health partners
- Look for possible sources of infection
When Should You Contact a Healthcare Provider?
Contact your healthcare provider if you have symptoms of Cyclospora.
Many stomach illnesses can cause similar symptoms. Your healthcare provider can decide if testing is needed and discuss treatment options with you.
How Can You Protect Yourself?
You can lower your risk of getting sick by:
- Washing your hands with soap and water before preparing or eating food
- Washing fresh fruits and vegetables before eating them
- Following safe food handling practices
- Drinking water from safe sources
Stay Informed
The Jefferson County Health Department will continue to monitor the situation and share updates as more information becomes available.
If you have questions about Cyclospora or other communicable diseases, visit the CDC website.
Last modified: August 6, 2026
