CDC Confirms Contaminated Lettuce Led to Taco Bell Outbreak, Affecting Thousands

Michigan has reported 4,312 cyclosporiasis cases statewide with at least 102 hospitalizations, underscoring the outbreak's heavy concentration in a single state while the broader nationwide total climbs into the thousands.
California-based Taylor Farms, specifically a Salinas, California operation, has been identified by The Washington Post and NBC News as the supplier linked to Taco Bell's lettuce implicated in the outbreak.
Public health reporting suggests the 2026 cyclosporiasis outbreak could be the largest on record for this parasite in a single year, with authorities indicating the year may exceed past totals.
Taco Bell announced it would indefinitely remove potentially impacted lettuce from its U.S. supply chain and replace it within 24 hours in affected states, following discussions with public health officials.
The outbreak began on May 1 and has spread across 34 states, with Michigan reporting a particularly large cluster early in the cycle, highlighting the rapid geographic expansion of the linked illness.
The CDC has linked a fast-spreading cyclosporiasis outbreak to iceberg lettuce supplied to Taco Bell, with California-based Taylor Farms identified as the likely source, according to The New York Times and Washington Examiner. The outbreak has sickened nearly 7,000 people across 34 states and sent 141 to the hospital, making it potentially the largest single-year outbreak of the parasite on record.
Taco Bell has voluntarily pulled the affected shredded iceberg lettuce from its U.S. supply chain. The company said it would replace the ingredient within 24 hours in impacted states. The outbreak began May 1 and has grown rapidly, with public health officials still working to confirm all distribution points.
Investigators pointed to Taylor Farms, a Salinas, California operation, as the supplier of the shredded iceberg lettuce tied to the outbreak. The New York Times reported that the CDC formally linked the lettuce to Taylor Farms. It is still unclear whether the company supplied the same lettuce to other restaurant chains or vendors.
Federal and state officials had been investigating the Mexican-style fast food chain for weeks before the supplier link emerged, according to Washington Examiner. Taco Bell has not publicly named Taylor Farms, but media reports from multiple outlets have confirmed the connection. The FDA and CDC are both actively involved in the investigation.
Michigan has reported 4,312 cyclosporiasis cases, far more than any other state. At least 102 people in Michigan have been hospitalized. The state saw a large cluster early in the outbreak cycle, signaling how quickly the illness spread before officials identified the source.
Nationwide, the CDC has confirmed at least 1,645 cases and 141 hospitalizations. But investigators are looking at more than 5,100 additional illnesses that may be linked, according to Eastern Herald. The total case count across 34 states could climb much higher as testing continues.
Taco Bell said it removed potentially impacted lettuce from its entire U.S. supply chain out of "an abundance of caution." The company committed to replacing the ingredient within 24 hours in affected states. The move came after discussions with public health officials, according to Detroit News.
The affected item is shredded iceberg lettuce used across several Taco Bell menu items. Briefs reported that the parasite was traced back to one of Taco Bell's lettuce suppliers. Customers in states like Michigan, Ohio, and neighboring Midwestern states were the first to see the lettuce removed from menus.
Cyclospora is a microscopic parasite that infects the small intestine. It causes watery diarrhea, stomach cramps, nausea, and fatigue. Symptoms can last weeks if untreated. The illness is treated with antibiotics, but people who are not diagnosed quickly often suffer longer.
Public health experts say the 2026 outbreak may be the largest single-year cyclosporiasis event on record. Past outbreaks have been linked to fresh produce like herbs and bagged salad greens. Authorities urged anyone who ate Taco Bell lettuce and developed symptoms to contact a doctor and report their illness to local health officials.
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