🔥 Trending West Virginia Cyclosporiasis Outbreak: What You Need to Know

West Virginia is currently experiencing an unusual and significant outbreak of cyclosporiasis, a parasitic illness, prompting health officials to issue a statewide health alert ¹⁵⁶. This surge in cases is far above the state's typical yearly average ¹.

What is Cyclosporiasis?

Cyclosporiasis is a gastrointestinal illness caused by the microscopic parasite Cyclospora cayetanensis ²¹⁰. The infection is primarily foodborne, often linked to fresh produce or contaminated water ⁸¹⁰. Symptoms typically begin about one week after consuming contaminated food or drink ¹⁰.

Current Situation in West Virginia

As of July 13, 2026, West Virginia has reported at least 47 cases of cyclosporiasis since June 17, 2026 ¹⁴. This number is substantially higher than the state's usual average of about nine cases per year ¹. The Centers for Disease Control and Prevention (CDC) is reporting an outbreak of this intestinal illness across 31 states, including West Virginia ⁴. Most of the cases in West Virginia have been identified in counties along the western border of the state ⁴. Investigations are ongoing by state and federal partners to identify the source(s) of the illness ².

Symptoms of Cyclosporiasis

The most common and characteristic symptom of cyclosporiasis is watery diarrhea, which can be severe and may last for weeks if untreated ⁶¹⁰. Other symptoms can include:

• Loss of appetite ⁹
• Weight loss ⁹
• Stomach cramps or pain ⁹
• Nausea ⁹
• Vomiting ⁹
• Bloating ⁹
• Increased gas ⁹
• Fatigue ⁹
• Low-grade fever ⁹

Symptoms may come and go, sometimes appearing to improve before worsening again ⁹.

Prevention and Reporting

West Virginia health officials are urging residents to practice safe food handling to help prevent further spread ⁵. Key prevention tips include:

• Thoroughly wash fruits and vegetables: Even if pre-washed, rinse produce under running water before consumption ⁸.
• Cook food to appropriate temperatures: While often linked to fresh produce, proper cooking can eliminate parasites.
• Maintain good hygiene: Wash hands thoroughly with soap and water, especially after using the restroom and before handling food ⁸.

Cyclosporiasis is a reportable condition in West Virginia, meaning healthcare providers are required to report diagnosed or suspected cases to public health authorities within 72 hours ⁷. Clinical specimens should be submitted to the West Virginia Office of Laboratory Services (OLS) for confirmatory testing ⁷.