Iceberg lettuce investigated as possible source of cyclosporiasis outbreak

The FDA is investigating iceberg lettuce supplied to Taco Bell by Taylor Farms as a source in an escalating outbreak of cyclosporiasis.

The Food and Drug Administration is investigating iceberg lettuce supplied to Taco Bell by Taylor Farms as a possible source in an escalating outbreak of cyclosporiasis, a stomach bug that causes weeks of severe diarrhea, in five states, according to a person familiar with the investigation.

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Nationwide, nearly 7,000 people may have been sickened, with 1,645 of those cases confirmed and more than 5,100 still under investigation, according to the Centers for Disease Control and Prevention. No deaths have been reported.

Earlier this week, the CDC announced an investigation into more than 400 cases in Michigan, Ohio, West Virginia and Kentucky. A source with knowledge of the federal health investigation said Thursday that Indiana appears to be part of that outbreak.