U.S. health officials admitted on July 20, 2026 that lettuce from Taylor Farms tested positive for cyclospora parasite but later found the lab findings wrong. The mistake stemmed from bad lab work, not from tainted produce. The confusion left shoppers in the dark about a wider cyclospora hitting several U.S. states. Case numbers rose while authorities hunted for the true source. Taylor Farms lettuce has been cleared. The search for the actual cause goes on.