The FDA traced a cyclosporiasis outbreak across multiple US states back to iceberg lettuce supplied by Taylor Farms, the agricultural company confirmed. Taco Bell and Walmart were the primary retail points where contaminated produce reached consumers.
Cyclosporiasis, a parasitic infection spread through contaminated water or food, causes severe diarrhea, nausea, and abdominal cramping. The outbreak affected dozens of people across at least seven states, with symptoms emerging weeks after consuming the affected lettuce.
Taylor Farms, a major salad and fresh-produce supplier based in California, halted distribution of iceberg lettuce from the implicated facility as federal investigators identified the contamination source. The company works with major food retailers and quick-service restaurants nationwide, making swift action critical to prevent additional illnesses.
The FDA investigation determined that water used in production or growing conditions likely introduced the Cyclospora parasite to the lettuce. The pathogen survives standard washing procedures, requiring either thorough cooking or significant time passage to render the product safe. This limitation makes raw produce particularly vulnerable to contamination events.
Cyclosporiasis cases typically require antibiotic treatment with trimethoprim-sulfamethoxazole. Without proper medical attention, the infection can persist for weeks, causing severe dehydration and malnutrition.
This outbreak underscores ongoing food-safety challenges in the US fresh-produce supply chain. Cyclosporiasis outbreaks linked to contaminated lettuce, berries, and herbs have occurred repeatedly over the past decade, prompting repeated FDA warnings and retailer recalls. The agency emphasized that consumers return any potentially contaminated lettuce and seek medical attention if experiencing severe gastrointestinal symptoms after recent salad consumption.