"It Was the Lettuce": 7,000 Parasitic Infections in the U.S. Sparked Panic, but Tests Reveal a Twist

Taylor Farms Says "Received Apology from FDA"

FDA Still Asserts Connection

In the United States, a parasitic infection outbreak affecting thousands of patients was initially linked to Mexican-grown iceberg lettuce. However, the test results that supported this conclusion have been found to be erroneous. Nevertheless, some continue to suspect a connection between the lettuce and the outbreak.

Lettuce. Pixabay

According to Politico on July 20 (local time), the U.S. Food and Drug Administration (FDA) determined that laboratory results indicating a link between Taylor Farms' lettuce and cyclosporiasis were false positives. Taylor Farms is a large produce supplier that has been in operation since 1995, providing lettuce not only to grocery stores but also to various restaurant chains such as Taco Bell and Jack in the Box.

Previously, the FDA had announced that Mexican-grown iceberg lettuce supplied by Taylor Farms and distributed to outlets such as Taco Bell was responsible for causing a nationwide parasitic infection outbreak. However, these latest test results have effectively overturned that conclusion. Taylor Farms stated that the FDA has since apologized to the company for this misjudgment.

Cyclosporiasis is an intestinal disease that causes symptoms such as abdominal pain, nausea, and diarrhea. While it is not transmitted between people, it is primarily contracted through the consumption of produce, fruit, or water contaminated with the parasite. So far, more than 7,000 confirmed cases have been reported across 34 states in the U.S.

However, since the exact cause of the outbreak has not yet been determined, the recall of Taylor Farms lettuce will proceed as previously planned. Taylor Farms completed a recall for iceberg lettuce grown in central Mexico and distributed to 27 states, including Alabama and Arkansas, between June 29 and July 16 of this year.

Pixabay

Nevertheless, the FDA, despite the false positive results, is not ruling out a possible connection between Taylor Farms and the cyclosporiasis outbreak. According to the Washington Post, the FDA reiterated on social media that "FDA’s epidemiological investigation and outbreak data continue to identify Taylor Farms’ iceberg lettuce as the likely source."

The FDA noted that, as of now, no product has been definitively found to contain the parasite that causes cyclosporiasis. However, it explained that a test result being deemed a false positive does not mean the lettuce was not contaminated.

Meanwhile, Taylor Farms has previously faced controversy over large-scale outbreaks linked to its produce. In 2024, onions supplied to McDonald’s were implicated in an E. coli outbreak, and in 2015, celery and onions used in chicken salad sold at Costco were recalled due to possible contamination risks.

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