Federal health officials traced a cyclospora outbreak to iceberg lettuce served at Taco Bell locations across Indiana, Kentucky, Michigan, Ohio, and West Virginia, NPR and Ars Technica reported on July 17, 2026.

The lettuce came from a single supplier based in Mexico, NPR said. Officials determined that the contaminated product was served inside Taco Bell restaurants, not through any retail or grocery channel.

Cyclospora is a parasite that causes cyclosporiasis, an intestinal illness. The outbreak spans all five of the named states, Ars Technica said.