Authorities have linked a widespread parasitic outbreak to shredded iceberg lettuce supplied by Taylor Farms to Taco Bell restaurants. The outbreak has sickened thousands of people across five states—Michigan, Ohio, Kentucky, West Virginia, and Indiana—prompting a federal investigation. Health officials say the illness, caused by cyclosporiasis, can produce explosive diarrhea and vomiting.

Investigators are examining a variety of produce items to trace the source of the infection and to determine whether the same contaminated batch was distributed nationwide. Early reports indicate that the cases in the five states share similar timelines and symptom patterns, suggesting a common supply chain. The Centers for Disease Control and Prevention has issued a warning to consumers and restaurants, urging them to review recent shipments and to discard any suspect lettuce.

Food‑service workers are advised to follow strict hygiene protocols while handling produce. The investigation continues as officials work to identify the contaminated lot and to prevent further exposure.