FDA says Taylor Farms cyclospora finding was a false positive - Reuters

4 sources10 storiesFirst seen 7/20/2026Score28Mixed Progress

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health agency now says cyclospora finding at produce company was false positive - CBC.

Supported by 3 stories

Taylor Farms lettuce sample that tested positive for cyclospora was a false positive, FDA says - CBS News.

Supported by 1 story

Taylor Farms lettuce sample that tested positive for cyclospora was a false positive, FDA says CBS NewsFDA says Taylor Farms Cyclospora lettuce test was a false positive Fox BusinessCyclosporiasis outbreak: FDA receives false-positive result when testing Taylor Farms lettuce for the parasite 6abc PhiladelphiaFDA Walks Back Finding of Cyclospora Parasite as Outbreak Probe Continues WSJTaylor Farms expands iceberg lettuce recall to 27 states amid cyclosporiasis cases WRAL

Supported by 1 story

FDA says Taylor Farms Cyclospora lettuce test was a false positive - Fox Business.

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FDA says Taylor Farms Cyclospora lettuce test was a false positive Fox BusinessFDA says positive Cyclospora test linked to lettuce outbreak was false alarm NewsNationFDA Tests That Found Cyclospora In Taco Bell Supplier's Lettuce Were A ‘False Positive' ForbesFDA Walks Back Finding of Cyclospora Parasite as Outbreak Probe Continues WSJThe cyclospora outbreak lawsuits have begun Business Insider

Supported by 1 story

FDA says Taylor Farms lettuce sample tested for cyclospora produced false positive for the parasite - NBC News.

Supported by 1 story

FDA says Taylor Farms lettuce sample tested for cyclospora produced false positive for the parasite NBC NewsFDA Walks Back Finding of Cyclospora Parasite as Outbreak Probe Continues WSJTaylor Farms lettuce sample that tested positive for cyclospora was a false positive, FDA says CBS NewsTaylor Farms expands iceberg lettuce recall to NC, 26 other states amid cyclosporiasis cases WRALCyclosporiasis Is Solved!

Supported by 1 story

FDA Tests That Found Cyclospora In Taco Bell Supplier's Lettuce Were A ‘False Positive' - Forbes.

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Claim Contradictions

negation mismatch

A: FDA Tests That Found Cyclospora In Taco Bell Supplier's Lettuce Were A ‘False Positive' - Forbes.

B: The FDA said that as of Sunday, it had not found any "confirmed positive sample results for product testing for Cyclospora.

negation mismatch

A: FDA Tests That Found Cyclospora In Taco Bell Supplier's Lettuce Were A ‘False Positive' ForbesFDA Walks Back Finding of Cyclospora Parasite as Outbreak Probe Continues WSJTaylor Farms lettuce sample that tested positive for cyclospora was a false positive, FDA says CBS NewsTaylor Farms expands iceberg lettuce recall to NC, 26 other states amid cyclosporiasis cases WRALCyclosporiasis Is Solved!

B: The FDA said that as of Sunday, it had not found any "confirmed positive sample results for product testing for Cyclospora.

Summary

**Summary:** The FDA confirmed that a sample of lettuce from Taylor Farms was mistakenly identified as having the parasite cyclospora, leading to an outbreak investigation. This false positive result resulted in a recall and testing of Taco Bell's lettuce supplier. **Why It Matters:** This incident highlights the importance of accurate laboratory results in