FDA's Taylor Farms Cyclospora False Positive Explained

A cyclospora outbreak linked to Taylor Farms shredded iceberg lettuce has sickened over 1,600 people across 34 states since May 1, 2026, with 141 hospitalizations. The FDA initially announced a positive test for cyclospora in imported lettuce during border screening, but retracted it the next day as a false positive after lab re-review. The recall, initiated by Taylor Farms voluntarily based on epidemiological data, remains unchanged. The article explains that cyclospora cannot be cultured in a lab, making detection extremely difficult, and that iceberg lettuce's rapid farm-to-table timeline further complicates testing. The FDA has no confirmed positive product samples for cyclospora in this outbreak. Taylor Farms noted the lack of a single positive product test result, while the FDA acting commissioner stated the false positive does not alter the basis for the outbreak investigation or the recall.