Federal health officials said lettuce from Mexico served at Taco Bell locations across five states has been named a source of the rapid spread in cases, though additional sources could still be named. The Centers for Disease Control and Prevention late Thursday warned consumers not to eat shredded iceberg lettuce from Taco Bell restaurants in Indiana, Kentucky, Michigan, Ohio and West Virginia. A Food and Drug Administration investigation identified a single supplier of the lettuce. The federal warnings to consumers did not identify the company, but a person familiar with the investigation told NBC News it was Taylor Farms of Salinas, California. #lettuce #tacobell #cyclosporiasis #diarrhea