A Cyclospora parasite outbreak linked to lettuce served at Taco Bell locations has spread across five states, according to health authorities investigating the contamination. The parasite causes acute gastrointestinal illness characterized by severe diarrhea, abdominal cramps, and fatigue that can persist for weeks without treatment.

Cyclospora cayetanensis, a single-celled parasite, contaminates fresh produce when it comes into contact with feces from infected individuals or contaminated water sources. The organism requires days to become infectious after leaving a host, making produce the typical transmission route rather than direct person-to-person contact.

Health officials identified lettuce as the contamination source at specific Taco Bell restaurants after interviewing patients about their recent meals and activities. The investigation involved epidemiologists from multiple state health departments and the Centers for Disease Control and Prevention, who traced the supply chain to pinpoint which batches of produce were affected.

Cyclospora outbreaks in the United States occur sporadically, typically linked to imported fresh produce like berries, leafy greens, or herbs. The parasite thrives in warm climates where sanitation standards may be inconsistent. Previous outbreaks have affected thousands of people across multiple states, with notable cases traced to cilantro, raspberries, and bagged salad mixes.

Treatment involves antibiotic therapy, typically trimethoprim-sulfamethoxazole, which accelerates recovery. Without treatment, infections resolve independently but can last two to three weeks. Vulnerable populations including immunocompromised individuals and young children face increased risk of severe complications.

Taco Bell and health authorities have worked to remove contaminated products from distribution and identify all affected locations. The investigation continues to determine whether additional cases exist beyond the confirmed five states. Consumers are advised to purchase produce from reputable sources and