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FDA Corrects False Positive Finding of Cyclospora in Taylor Farms Lettuce

Monday, July 20, 2026 · 10 sources

The FDA announced that a laboratory re-check of lettuce samples from Taylor Farms showed a false positive result for cyclospora. There are no confirmed positive sample results for the parasite as of Sunday.

The US Food and Drug Administration said on Sunday that laboratory experts re-checked lettuce sample results from Taylor Farms in an investigation into an outbreak of the cyclospora parasite. The FDA concluded that the finding should be considered a false positive. A spokesperson for Taylor Fresh Foods told Reuters that the company was informed the FDA made a mistake. As of Sunday, there were no confirmed positive sample results for cyclospora, the FDA added.

The FDA on Saturday had said that a sample of shredded iceberg lettuce supplied by Taylor Farms tested positive for the parasitic illness that has sickened thousands of people in the US. The correction comes after the initial report of the positive test result.

Go Deeper

What is cyclosporiasis?

Cyclosporiasis is a parasitic illness that can cause diarrhea and other symptoms. It is typically spread through contaminated food or water.

How can I avoid getting cyclospora?

To help avoid cyclospora, it's essential to properly clean and wash produce, especially leafy greens like lettuce. You can also cook your food to an internal temperature of at least 165°F to kill any bacteria or parasites.

What are the symptoms of cyclosporiasis?

The symptoms of cyclosporiasis can include diarrhea, abdominal cramps, bloating, and gas. In some cases, people may also experience fever, headache, and body aches.

How many people have been sickened by cyclospora?

According to reports, thousands of people in the US have been sickened by the cyclospora parasite. However, the exact number of cases is not specified.

What is Taylor Farms doing in response to the false positive result?

A spokesperson for Taylor Fresh Foods said that the company was informed the FDA made a mistake. However, there is no further information on what actions Taylor Farms will take in response to the false positive result.