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 mistaken. Lab contamination, not from anything wrong with the food itself. The confusion fear spread about a wider cyclospora hitting a number of U.S. states. Case numbers rose while authorities continued for the real source. Taylor Farms lettuce stays clear of blame. The hunt for the actual cause goes on.