The U.S. Food and Drug Administration has issued a rare correction after acknowledging that a laboratory test linking Taylor Farms lettuce to Cyclospora contamination was wrong. FDA Says No Confirmed Positive Lettuce Samples ExistIn a statement released Sunday, the FDA said it had reexamined the laboratory results from a sample collected from Taylor Farms de Mexico. The agency also removed Saturday's notice reporting the positive test from its public outbreak updates. Taylor Farms Says FDA ApologizedTaylor Farms responded Sunday night, saying the FDA acknowledged its mistake and apologized. Despite the corrected test result, Taylor Farms' previously announced voluntary recall of iceberg lettuce sourced from central Mexico remains unchanged.