Somewhere between a California farm and a fast-food kitchen, a microscopic parasite found its way into the American food supply. By mid-July 2026, investigators had traced a widening cyclosporiasis outbreak — centered in Michigan, with thousands sickened across the Midwest — to shredded iceberg lettuce supplied by Taylor Farms to Taco Bell restaurants. The scale of the outbreak surpassed previous US incidents, and the investigation into how the contamination began remains open, a reminder that the distance between field and table is rarely as safe as it seems.
Taylor Farms lettuce linked to massive US cyclosporiasis outbreak affecting thousands
Thousands of people across multiple US states have been sickened with cyclosporiasis, with Michigan alone reporting 4,312 confirmed cases causing gastrointestinal illness.