North Carolina Reports Over 200 Cyclosporiasis (explosive diarrhea) Cases: Symptoms, Causes, Prevention, and What You Should Know

Cyclosporiasis cases are increasing across North Carolina, with health officials reporting more than 200 infections since early May. The illness, caused by the parasite Cyclospora cayetanensis, is commonly linked to contaminated fresh produce and can lead to prolonged digestive problems if left untreated. While infections tend to appear during the warmer months, the recent rise in reported cases has prompted public health officials to encourage residents to practice proper food safety and seek medical attention if symptoms continue.

Understanding how this illness spreads, recognizing the warning signs, and following prevention measures can significantly reduce the risk of infection.

What Is Cyclosporiasis?

Cyclosporiasis is an intestinal illness caused by the microscopic parasite Cyclospora cayetanensis. People become infected after consuming food or water contaminated with the parasite. Unlike many bacterial foodborne illnesses, Cyclospora infections are most commonly associated with fresh fruits and vegetables rather than undercooked meat.

Because many fresh produce items are eaten raw, contaminated food can easily spread the parasite before it reaches consumers. Imported produce has historically been linked to outbreaks, although contamination can occur anywhere within the food supply chain.

Health experts note that the parasite does not spread directly from one person to another immediately because it requires time outside the human body before becoming infectious.

North Carolina Reports More Than 200 Cases

According to the North Carolina Department of Health and Human Services, at least 205 confirmed cases of cyclosporiasis have been identified since May 1, 2026. While this number is higher than many seasonal reports, health officials emphasize that investigations are still ongoing.

Medical professionals explain that identifying where the infections originated can be difficult because fresh produce is distributed across multiple states and often imported from different regions.

Doctors also point out that some infected individuals may have contracted the illness while traveling internationally before returning home.

Common Symptoms of Cyclosporiasis

Symptoms generally appear about one week after consuming contaminated food or water, although the incubation period can vary.

The most common symptoms include:

• Frequent watery diarrhea
• Severe or explosive diarrhea
• Nausea
• Loss of appetite
• Fatigue
• Stomach cramps
• Bloating
• Gas
• Weight loss
• Mild fever in some cases

Without treatment, symptoms may continue for several weeks and sometimes return after temporarily improving.

Many people mistake the illness for a common stomach virus or food poisoning, which is why prolonged digestive symptoms should not be ignored.

Why Diagnosis Can Be Challenging

Healthcare providers explain that cyclosporiasis cannot be confirmed based on symptoms alone because it closely resembles several other gastrointestinal illnesses.

Diagnosis requires specialized laboratory testing on a stool sample. Not every routine stool examination automatically checks for Cyclospora, so physicians may need to request specific testing when the infection is suspected.

Early diagnosis allows healthcare providers to prescribe the appropriate antibiotic treatment, which can significantly shorten recovery time.

How the Parasite Spreads

Cyclospora infections usually occur after eating contaminated fresh produce, including:

• Leafy greens
• Lettuce
• Herbs
• Cilantro
• Basil
• Raspberries
• Strawberries
• Other fresh fruits and vegetables

Contamination often happens before produce reaches grocery stores, making prevention more challenging than simply preparing food safely at home.

The parasite can also spread through contaminated drinking water, although food remains the primary source in most reported outbreaks.

How to Reduce Your Risk

Although it is impossible to eliminate every risk associated with foodborne parasites, several practical precautions can lower the chances of infection.

Wash Fresh Produce Thoroughly

Rinse fruits and vegetables under clean running water before eating, cutting, or cooking them. Even produce with peels should be washed because bacteria and parasites can transfer from the skin to the edible portion during preparation.

Practice Good Hand Hygiene

Wash your hands thoroughly with soap and water before handling food, after using the restroom, and after touching raw produce.

Store Food Properly

Keep perishable foods refrigerated and separate fresh produce from raw meats to reduce cross contamination.

Stay Informed About Food Recalls

Public health agencies occasionally issue recalls involving contaminated produce. Monitoring food safety announcements can help consumers avoid potentially affected products.

When to See a Doctor

Medical experts recommend contacting a healthcare provider if diarrhea lasts longer than two or three days, becomes severe, or is accompanied by dehydration.

Signs of dehydration include:

• Dry mouth
• Excessive thirst
• Dizziness
• Dark urine
• Reduced urination
• Weakness

Individuals with weakened immune systems, older adults, young children, and pregnant women should seek medical advice sooner because complications may develop more quickly.

Is Cyclosporiasis Treatable?

Yes. Most confirmed cases respond well to prescription antibiotics, particularly trimethoprim-sulfamethoxazole (TMP-SMX), which is considered the standard treatment.

Patients who cannot take this medication due to allergies or other medical conditions should discuss alternative management options with their healthcare provider.

It is important not to self-medicate with antibiotics, as proper diagnosis is necessary before treatment begins.

Why Seasonal Increases Occur

Cyclosporiasis cases often rise during spring and summer when fresh produce consumption increases and imported fruits and vegetables become more widely available.

Public health agencies across the United States monitor seasonal patterns to identify outbreaks and trace potential contamination sources.

Because produce is transported across state and international borders, cases reported in one state may be connected to food distributed from another region.

Public Health Response

North Carolina health officials continue monitoring reported infections while working with healthcare providers and public health partners to identify possible sources.

Experts stress that the current case count does not necessarily indicate contamination originated within North Carolina. Interstate commerce and international food distribution make tracing the exact origin of contaminated produce a complex process.

Consumers can help reduce illness by practicing proper food hygiene and seeking medical evaluation if symptoms persist.

Final Thoughts

The recent increase in cyclosporiasis cases serves as an important reminder that foodborne illnesses remain a public health concern. While the parasite is relatively uncommon compared to other gastrointestinal infections, its symptoms can be severe and long lasting without appropriate treatment.

Simple preventive habits such as washing produce, maintaining good hand hygiene, and seeking medical attention for persistent digestive symptoms can greatly reduce the risk of serious illness. As health officials continue investigating reported cases, staying informed and practicing safe food handling remain the best defenses against infection.

Source

• North Carolina Department of Health and Human Services (NCDHHS)
• WBTW / Queen City News (Nexstar Media) report published July 10, 2026
• U.S. Centers for Disease Control and Prevention (CDC): Cyclosporiasis information

Disclaimer

This article is intended for informational and educational purposes only and should not be considered medical advice, diagnosis, or treatment. The content is a rewritten summary based on publicly available reporting and official public health information. If you experience persistent diarrhea, dehydration, or other concerning symptoms, consult a qualified healthcare professional promptly. Always rely on guidance from your healthcare provider and local public health authorities regarding diagnosis, treatment, and disease prevention.