Cyclosporiasis is an intestinal illness caused by a microscopic parasite called Cyclospora. Recent outbreaks linked to contaminated produce have brought renewed attention to this infection and how patients can recognize symptoms.
For most healthy people, cyclosporiasis is treatable. However, symptoms can be uncomfortable and may last longer than typical stomach upset if not addressed.
What Is Cyclosporiasis?
Cyclosporiasis is caused by consuming food or water contaminated with Cyclospora. It has been linked to fresh produce in past outbreaks, including leafy greens, herbs, berries, and other raw foods.
Unlike some stomach bugs that spread easily from person to person, cyclosporiasis is most often associated with contaminated food or water.
Common Symptoms
Symptoms usually begin about a week after consuming contaminated food or water, though they may appear sooner or later.
Common symptoms include:
- Watery diarrhea
- Frequent bowel movements
- Loss of appetite
- Weight loss
- Stomach cramps
- Bloating
- Gas
- Nausea
- Fatigue
- Low-grade fever
Symptoms may seem to improve and then return. Without treatment, illness can last for days, weeks, or longer.
When to Call Your Doctor
Contact your healthcare provider if you have persistent diarrhea, especially if it lasts more than a few days or is associated with dehydration.
You should also call your doctor if you have:
- Diarrhea after a known foodborne outbreak
- Severe stomach cramps
- Unexplained weight loss
- Fatigue that does not improve
- Fever
- Blood in the stool
- Symptoms that improve and then come back
Patients with weakened immune systems, older adults, young children, and pregnant patients should seek care sooner.
Why Diagnosis Matters
Cyclosporiasis can resemble other gastrointestinal illnesses, so testing may be needed to identify the cause. Your provider may order a stool test if symptoms or exposure history suggest a parasitic infection.
Treatment is available, and the right diagnosis can help patients recover more quickly and avoid prolonged symptoms.
How to Reduce Risk
Foodborne illness cannot always be prevented, but basic food safety habits can lower risk.
Helpful steps include:
- Wash hands before preparing food
- Rinse fresh fruits and vegetables under running water
- Keep produce separate from raw meat, poultry, and seafood
- Refrigerate perishable foods promptly
- Follow public health alerts during known outbreaks
- Avoid recalled or outbreak-linked foods
- Clean cutting boards, utensils, and countertops after use
Washing produce can reduce risk, but it may not remove every contaminant. During an outbreak, follow official guidance about which foods to avoid.
Preventing Dehydration
Diarrhea can lead to dehydration, especially if symptoms are frequent or prolonged.
To reduce dehydration risk:
- Drink water regularly
- Use oral rehydration solutions if needed
- Avoid alcohol
- Limit very sugary drinks if they worsen diarrhea
- Seek care if you cannot keep fluids down
Signs of dehydration include dizziness, dry mouth, dark urine, weakness, and urinating less than usual.
Bottom Line
Cyclosporiasis is a foodborne intestinal illness that can cause prolonged diarrhea, cramping, fatigue, and appetite changes. It is treatable, but symptoms should not be ignored if they persist.
If you have ongoing diarrhea, possible exposure to a foodborne outbreak, or signs of dehydration, contact your healthcare provider for evaluation and guidance.
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