The U.S. Food and Drug Administration said a cyclospora test involving California-based Taylor Farms iceberg lettuce was a false positive, revising an earlier finding that prompted a voluntary recall. The update clarifies the agency’s product testing while the completed recall and public health guidance remain in place.
Key Takeaways
- The FDA said the Taylor Farms lettuce sample previously linked to cyclospora was a false positive.
- Taylor Farms confirmed the FDA’s updated findings and completed its voluntary recall of affected iceberg lettuce.
- The FDA said it has not identified a confirmed positive product sample during its testing.
- The Centers for Disease Control and Prevention continues to investigate cyclosporiasis cases reported in multiple states.
- California health officials said cyclosporiasis cases in the state remain within normal limits.
The Taylor Farms lettuce false positive update marks a significant change in the federal investigation into a suspected cyclospora contamination linked to shredded iceberg lettuce. The U.S. Food and Drug Administration said the laboratory result that initially prompted concern was incorrect and that its testing has not identified a confirmed positive product sample.
The revised finding follows an earlier advisory that connected rising cyclosporiasis cases to shredded iceberg lettuce supplied by Taylor Farms de Mexico. After the initial notification, Monterey County-based Taylor Fresh Foods voluntarily recalled affected iceberg lettuce distributed in the United States. The company confirmed the FDA’s revised findings while noting that the recall had already been completed.
Monterey County remains one of California’s most important agricultural regions, where produce companies play a significant role in the state’s food supply. The latest development follows other recent challenges affecting growers, including California peach industry disruptions that have reshaped parts of the state’s agricultural sector.
FDA Revises Product Testing Findings
FDA Testing Update
The FDA stated that additional review determined the lettuce sample previously identified as positive for cyclospora was a false positive. The agency also said it has not confirmed a positive product sample through its testing conducted as part of the investigation.
The updated statement changes an earlier assessment that led federal officials to identify shredded iceberg lettuce associated with Taylor Farms de Mexico as a likely source under investigation. The revised laboratory finding does not end the broader public health investigation, but it removes the previously reported positive product test from the agency’s evidence.
Cyclospora is a microscopic parasite that can cause cyclosporiasis, an intestinal illness commonly associated with severe diarrhea and other gastrointestinal symptoms. Federal health officials continue to investigate reported illnesses while evaluating potential food sources connected to the outbreak.
The FDA’s latest update specifically addresses the laboratory testing of the lettuce sample. The agency did not announce additional confirmed contaminated food products in connection with the revised testing results.
Taylor Farms Confirms Recall Remains Complete
Voluntary Recall Details
Taylor Farms confirmed the FDA’s revised findings in a written statement after the agency announced the laboratory result had been determined to be a false positive.
The California-based company also stated that it had completed its voluntary recall of iceberg lettuce grown and processed in central Mexico. The recall was initiated after the FDA’s earlier advisory connected the product to the ongoing investigation.
Taylor Fresh Foods, headquartered in Monterey County, said no other products sold in the United States were included in the recall. The company remains one of the country’s largest fresh produce suppliers, serving retailers and foodservice customers across North America.
Food recalls involving fresh products require coordination between federal regulators and state agencies, similar to previous California shellfish safety recalls that prompted precautionary public health responses.
Although the FDA updated its testing findings, Taylor Farms did not announce additional changes to the completed recall. The company’s confirmation reflects the sequence of events following the federal agency’s revised laboratory assessment.
The recall involved only specified iceberg lettuce products associated with the investigation. The FDA’s updated statement did not expand the recall to include additional Taylor Farms products.
Federal and State Health Agencies Continue Investigation
CDC Outbreak Investigation
The Centers for Disease Control and Prevention continues to investigate cyclosporiasis cases reported in multiple states. Federal health officials previously said that the primary outbreak under review involved shredded iceberg lettuce served at selected Taco Bell restaurants in Ohio and four additional states.
According to the CDC, more than 1,600 confirmed cyclosporiasis cases have been reported across the United States, with several states recording higher case numbers than during the same period last year.
Federal investigators continue to analyze available epidemiological information alongside laboratory testing. The FDA’s revised product test does not alter the CDC’s ongoing illness investigation.
Cyclospora infections generally occur after people consume food contaminated with the parasite. Public health officials note that contamination can occur when an infected food handler with inadequate hand hygiene transfers the parasite to fresh produce or other foods before consumption.
Taco Bell previously announced that it voluntarily removed potentially affected lettuce supplied through one of its vendors in selected states following the earlier FDA advisory.
Neither the FDA nor the CDC announced new confirmed contaminated lettuce samples in connection with the revised laboratory findings.
California Health Officials Report Normal Case Levels
California Public Health Advisory
The California Department of Public Health said reported cyclosporiasis cases within the state remain within normal limits despite the nationwide increase identified by federal health officials.
State health officials continue to monitor reported illnesses while coordinating with federal agencies involved in the investigation.
The department also continues to recommend that consumers thoroughly wash fresh produce before eating or preparing it. Washing fruits and vegetables remains part of standard food safety guidance intended to reduce potential exposure to contaminants. Similar prevention measures are frequently emphasized during California respiratory virus monitoring and other statewide public health advisories.
California officials have not reported an unusual increase in statewide cyclosporiasis cases associated with the ongoing federal investigation.
The state’s update provides additional context for California consumers following the FDA’s revised laboratory findings involving a California-headquartered produce company.
Health officials have not announced additional statewide advisories beyond existing produce safety recommendations.
Food Safety Guidance Remains in Effect
The FDA’s revised laboratory finding changes one aspect of the investigation, but food safety guidance issued by public health agencies remains unchanged.
Consumers are encouraged to continue following standard food handling practices, including washing fresh produce before consumption, maintaining clean food preparation surfaces, and practicing proper hand hygiene during food preparation.
Cyclospora infections are caused by ingesting food or water contaminated with the parasite. Health authorities continue to advise consumers experiencing prolonged gastrointestinal symptoms after suspected exposure to seek medical evaluation.
The FDA continues its investigation into reported illnesses while reviewing available laboratory and epidemiological evidence. The agency has stated that no confirmed positive product sample has been identified through its testing related to this investigation.
Taylor Farms’ completed voluntary recall remains part of the agency’s response timeline, even after the FDA determined that the previously reported lettuce sample produced a false positive laboratory result.
Frequently Asked Questions
Why did the FDA change its Taylor Farms lettuce test results?
The FDA said additional review determined that the lettuce sample previously reported as positive for cyclospora was a false positive. The agency also stated that it has not identified a confirmed positive product sample during its testing.
Does the Taylor Farms lettuce recall remain in effect?
Taylor Farms said it completed its voluntary recall of affected iceberg lettuce grown and processed in central Mexico following the FDA’s earlier advisory.
What is cyclospora and how does it spread?
Cyclospora is a microscopic parasite that causes cyclosporiasis. People typically become infected by consuming food or water contaminated with the parasite.
Are cyclosporiasis cases increasing in California?
The California Department of Public Health said reported cyclosporiasis cases in California remain within normal limits despite elevated case numbers reported in several other states.
What produce safety guidance are health officials recommending?
California health officials continue to recommend washing fresh produce thoroughly before eating or preparing it and following standard food safety and hand hygiene practices.
