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FDA: Taylor Farms lettuce that's not part of recall tests positive for cyclospora

The Taylor Farms lettuce sample that tested positive for cyclospora was a false positive, the FDA said Sunday. The agency said it has not found any "confirmed positive sample results for product testing for cyclospora." CBS News' Ian Lee has more.

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What Happened

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  • The Taylor Farms lettuce sample that tested positive for cyclospora was a false positive, the FDA said Sunday. The agency said it has not found any "confirmed positive sample results for product testing for cyclospora." CBS News' Ian Lee has more.
  • This briefing tracks FDA: Taylor Farms lettuce that's not part of recall tests positive for cyclospora. Open the story for what happened, what is confirmed, what is still uncertain, and what may change next.

Confirmed

  • Lettuce that tested positive for cyclospora was false positive, FDA saysEvidence: CBS News, CBS News
  • Sample of Taylor Farms lettuce that tested positive for cyclospora was false positive, FDA saysEvidence: CBS News, CBS News
  • The FDA says a sample of Taylor Farms shredded iceberg lettuce that it initially reported positive for the parasite cyclospora was a false positive. The outbreak has sickened more than 1,600 people across five states. Ian Lee reports.Evidence: CBS News, CBS News
  • FDA says review of Taylor Farms lettuce shows cyclospora finding was false positiveEvidence: CBS News, CBS News
  • Spokesperson for Taylor Fresh Foods told Reuters ‌that the company was informed FDA made a mistake 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 and concluded the finding should be considered a false positive. As of Sunday, there were ⁠no confirmed positive sample results for cyclospora, the FDA added. The FDA on Saturday had said that a ⁠sample ofEvidence: CBS News, CBS News
  • Taylor Farms Lettuce Test for Cyclospora Was False Positive: FDAEvidence: CBS News, CBS News

Still Uncertain

  • Which direct records, statements, or on-the-ground details will clarify the next step.Evidence: CBS News, CBS News
  • What practical effects emerge for US.Evidence: CBS News, CBS News

Timeline

  1. 01
    Taylor Farms recalls lettuce shipped to 27 states over cyclospora riskJul 18, 2026CBS NewsEvidence: CBS News, CBS News
  2. 02
    FDA: Lettuce from California farm tests positive for cyclosporiasisJul 19, 2026Multiple outlets reported the same developmentEvidence: CBS News, The Guardian US, NBC News
  3. 03
    Lettuce that tested positive for cyclospora was false positive, FDA says

    The Taylor Farms lettuce sample that tested positive for cyclospora was a false positive, the FDA said Sunday. The agency said it has not found any "confirmed positive sample results for product testing for cyclospora." CBS News' Ian Lee has more.

    Jul 20, 2026NBC NewsEvidence: NBC News, CBS News

Material Impact

The next updates could clarify practical effects for US and for readers following health.

Evidence: CBS News, The Guardian US

Next Decision Point

Whether health agencies publish fresh case counts, guidance, or safety recommendations.

Evidence: CBS News, CBS News