07/16/2026
Cyclospora outbreak (also known as the explosive diarrhea disease).
Let's talk about it!
There are many questions circulating about this foodborne disease.
What is Cyclospora infection?
Cyclospora infection, or cyclosporiasis, is an intestinal illness caused by the microscopic parasite Cyclospora. People get infected by eating food or drinking water that is contaminated with the parasite. Cyclospora infection can occur throughout the year but is most frequently seen in the U.S.
during the spring and summer months (May through August). Cyclospora infection is not usually life threatening.
What are the typical symptoms of Cyclospora infection and when
do they begin?
Cyclospora infects the small intestine, a part of your digestive system.
Common symptoms include:
β’ Watery, sometimes explosive, diarrhea
β’ Abdominal cramping and bloating
β’ Nausea
β’ Fatigue
β’ Loss of appetite
β’ Weight loss
Symptoms usually begin about one week after exposure but can range from two days to two weeks.
How does Cyclospora infection spread?
Cyclospora spreads when people eat food or drink water that is contaminated with stool (p**p). Infection does not usually spread directly from one person to another.
Outbreaks in the U.S. have been linked to various types of fresh produce, including salad mix, berries, cilantro, basil, green onions, and snow peas.
What can be done to prevent Cyclospora infection?
Key prevention steps include:
β’ Wash hands with soap and water before and after handling raw fruits and vegetables
β’ Rinse fruits and vegetables, including herbs, under running water
β’ Scrub firm produce, such as melons or cucumbers, with a clean produce brush
Β·Cut away damaged areas on fruits and vegetables before eating
β’ Cook food thoroughly, which can kill Cyclospora
β’ Refrigerate cut, peeled, or cooked produce as soon as possible (within two hours)
β’ Avoid food or water that may be contaminated, especially when traveling to endemic regions
So far, Nevada has not had any cases linked to this outbreak. This can change at any time.
Please share this information to others.
If you have questions or suspect illness, please contact your primary care provider or to the Central Nevada Health District.