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The U.S. Food and Drug Administration (FDA) has clarified a new turn in the investigation into an outbreak of Cyclospora related to shredded iceberg lettuce from Mexico: a sample that had tested positive during an import review turned out to be a false positive.
The agency reported that over the weekend it notified Taylor Farms about a positive test detected in a sample of lettuce shredded from Mexico. However, a corrective test performed subsequently confirmed that the initial result was incorrect.
Despite this finding, the FDA noted that the false positive does not change the ongoing investigation or the epidemiological data supporting the voluntary product recall carried out by Taylor Farms.
FDA mantiene investigación por brote de Cyclospora en Estados Unidos
The FDA explained that its traceback investigations and data collected during the outbreak continue to point to shredded iceberg lettuce produced at Taylor Farms facilities located in central Mexico.
The agency indicated that it will continue working with federal and state authorities and health partners to determine the source of the multistate outbreak and ensure that potentially affected products are removed from the U.S. market.
"Protecting the American public remains our top priority," noted the FDA, which urged consumers to continue avoiding products included in the voluntary recall.
Taylor Farms retiró lechuga mexicana distribuida en Estados Unidos
Initially, Taylor Farms Mexico, located in Guanajuato, announced a voluntary recall in the U.S. market for products made with iceberg lettuce from central Mexico, due to possible contamination with Cyclospora.
The affected products were distributed between June 29 and July 16, 2026, in several states in the United States, including:
- Alabama
- Arkansas
- Connecticut
- Florida
- Georgia
- Illinois
- Indiana
- Michigan
- Nueva Jersey
- Ohio
- Texas
- Wisconsin, entre otros.
The company reported that it has suspended distribution of the iceberg lettuce related to the batch under investigation, notified its customers, and is maintaining collaboration with the FDA, the CDC, and state authorities.
¿Qué es Cyclospora y qué síntomas provoca?
Cyclospora is a parasite that can cause an intestinal illness known as cyclosporiasis. The infection usually causes gastrointestinal symptoms that can appear after several days or weeks of exposure.
Los síntomas más comunes incluyen:
- Diarrea frecuente o prolongada.
- Pérdida de apetito.
- Pérdida de peso.
- Cólicos o dolor abdominal.
- Inflamación abdominal.
- Gases.
- Náuseas.
- Fatiga.
In some cases, vomiting, fever, headache, and muscle aches may also occur.
Some infected individuals may not show symptoms, but in patients with weakened immune systems, the illness can be more severe and prolonged.
[Publicidad]