Despite false-positive test, Taylor Farms lettuce remains central to cyclosporiasis probe, FDA says

The Food and Drug Administration said Sunday that a lettuce sample previously reported as positive for Cyclospora was ...

FDA says Taylor Farms Cyclospora lettuce test was a false positive

The FDA says its lab finding of Cyclospora in Taylor Farms lettuce linked to the Taco Bell outbreak was a false positive ...
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False positive cyclospora test does not change investigation: FDA

Taylor Farms issued a voluntary recall of iceberg lettuce from Central Mexico that was shipped to 27 states.
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FDA backtracks after Taylor Farms lettuce test turns out to be false positive

No product sample has a confirmed positive Cyclospora result, but Taylor Farms' recall remains active as officials ...

FDA: False-positive test doesn't change Taylor Farms cyclospora probe

The U.S. Food and Drug Administration on Monday, July 20 defended publicizing a lettuce sample later found to be a false ...

FDA Says Taylor Farms Lettuce Sample Tested for Cyclospora Was a False Positive

“As of July 19, 2026, there are no confirmed positive sample results for product testing for Cyclospora,” the FDA said in an ...

Taylor Farms remains focus of FDA investigation, despite false positive

UC San Francisco infectious diseases expert Peter Chin-Hong said a positive test could still be incoming given the ...

FDA still probing Taylor Farms lettuce despite false positive test

The FDA said that as of Sunday, it had not found any "confirmed positive sample results for product testing" in the ...