The U.S. Food and Drug Administration said Sunday that a previous detection of cyclospora in Taylor Farms lettuce was a false positive [1].
This reversal removes a significant health concern for consumers and the company, as cyclospora is a parasite that can cause gastrointestinal illness. The correction ensures that products from the affected facility are not incorrectly flagged as contaminated, preventing unnecessary waste and public alarm.
The announcement came on July 19, 2026 [1]. The FDA said that there are currently zero confirmed positive samples of the parasite [4].
The initial detection occurred at the Taylor Farms de Mexico facility [2]. Following the first result, laboratory experts conducted a re-review of the test data to ensure accuracy. Those experts said that the original finding was the result of a laboratory error, an event that led to the false positive result [1].
Throughout the investigation, the FDA monitored the samples to verify the safety of the lettuce supply. Because the re-evaluation showed no actual presence of the parasite, the agency has cleared the previous finding [3].
Taylor Farms and the FDA have not reported any other contaminated samples related to this specific incident [4]. The agency continues to oversee food safety protocols at the Mexico-based facility to prevent future testing errors.
“The FDA announced that the cyclospora detection in a Taylor Farms lettuce sample was a false positive”
This incident highlights the critical role of laboratory verification in food safety. A false positive can trigger widespread recalls and damage a producer's reputation, but the FDA's re-review process serves as a necessary fail-safe to prevent unwarranted market disruptions. The shift from a positive to a negative finding indicates that the initial risk to public health was non-existent.
