FDA Reveals Cyclospora Testing Update as No Confirmed Positive Sample Results Found

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As of Sunday, the Food and Drug Administration (FDA) reported it had not found any “confirmed positive sample results for product testing for Cyclospora” related to a recent outbreak linked to Taylor Farms lettuce, according to CBS News.

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False Positive Identified in Taylor Farms Lettuce

The FDA determined that a sample of Taylor Farms lettuce previously believed to be contaminated with Cyclospora was a false positive, CBS News reported July 20, 2026. This finding comes after an investigation into an outbreak of the parasite that sickened at least one person in Michigan. The Michigan Department of Agriculture and Rural Development initially announced the recall of select Taylor Farms products on July 18, 2026, after the positive test result.

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The recalled products included bagged salads with various “use-by” dates, according to the Michigan Department of Agriculture and Rural Development. The FDA’s subsequent testing, however, did not corroborate the initial finding.

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Impact on Recall and Consumer Advice

Despite the FDA’s findings, the Michigan Department of Agriculture and Rural Development is maintaining its advisory for consumers. Individuals who purchased the recalled products are still advised to discard them, CBS News stated. The recalled products were sold in Michigan, Indiana, Illinois, Kentucky, Minnesota, Missouri, Ohio, and Wisconsin.

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The FDA continues to investigate the source of the Cyclospora outbreak, despite the false positive result. Cyclospora is a parasite that causes diarrheal illness, and symptoms typically include watery diarrhea, loss of appetite, weight loss, stomach cramps, nausea, and fatigue. The Centers for Disease Control and Prevention (CDC) estimates that approximately 745,000 Americans get sick with Cyclospora each year.

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Cyclospora and Public Health

Cyclospora infections are often linked to fresh produce contaminated with feces, according to the CDC. The parasite is commonly found in tropical and subtropical regions. Symptoms usually begin within one to two weeks of exposure and can last from one week to more than a month.

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The FDA’s investigation is ongoing and includes further testing of samples from Taylor Farms facilities and distribution centers. The agency has not reported any additional confirmed cases of Cyclospora linked to the outbreak since the initial report from Michigan. Consumers with questions about the recall can contact Taylor Farms at 877-873-7374.