…previously focused on iceberg lettuce supplied by Taylor Farms, which was linked to Taco Bell's lettuce supply chain, but later testing was described as a false positive. Iceberg lettuce supplied by Taylor Farms has since been recalled, with officials warning that contaminated products may already have been consumed or…

…foodborne parasite outbreak as shredded iceberg lettuce used by the fast food chain Taco Bell. A federal investigation by the Food and Drug Administration traced the contamination back to a single supplier of iceberg lettuce from Mexico, which was used by Taco Bell locations in five states, according to a statement fro…