Parasite Outbreak Tied to Taco Bell Lettuce Triggers Massive 27-State Recall

A Nationwide Recall With Deep Midwest Roots

Produce supplier Taylor Farms is recalling iceberg lettuce shipped to 27 U.S. states because of potential contamination with cyclospora, the parasite causing thousands of cases of diarrhea across the country. The recall, announced on July 17–18, follows a federal investigation that traced a major cluster of illnesses directly to one of America's most recognizable fast-food chains.

On July 16, the CDC identified shredded iceberg lettuce served at Taco Bell as the source of a Cyclospora outbreak in five states — Michigan, Ohio, Indiana, Kentucky, and West Virginia. The FDA traced the lettuce to a single grower in central Mexico, and on July 17–18, Taylor Farms de México recalled the Mexican-grown iceberg lettuce. The scope of the outbreak, however, extends well beyond those five states.

Cases of the intestinal illness are surging across the U.S., with nearly 7,000 cases confirmed or under investigation since May 1. Michigan alone has reported more than 5,000 cases, and state officials say the concentrated, sharp increase in cases "strongly suggests that the vast majority of these illnesses are associated with the same outbreak" — which would make it the largest cyclospora outbreak on record in the U.S.

What Is Cyclospora — and Why Is It So Hard to Shake?

Cyclospora is a microscopic parasite that infects food that has come into contact with human feces, most commonly when produce is irrigated or washed with contaminated water. It's not the kind of bug that passes in 24 hours. Cyclosporiasis characteristically causes watery diarrhea that comes and goes, often with loss of appetite, significant weight loss, cramping, bloating, nausea, and fatigue. Untreated, symptoms can last weeks to more than a month and may relapse — which is what sets it apart from most short-lived food poisoning.

People begin to experience symptoms about one week — ranging as soon as two days to two weeks or more — after consuming food or drinking water containing Cyclospora. That long and variable incubation window is part of what makes the outbreak so difficult to contain. Getting to the source of the outbreak has been difficult, as the incubation period for the parasite to make a person sick can be up to two weeks. By the time someone feels ill, they may have consumed the contaminated product well over a week prior.

The Chain Reaction: Taco Bell, Walmart, Sysco, and Beyond

Taylor Farms said that the potentially tainted shredded iceberg product was distributed June 29 through July 16 in states including Alabama, Connecticut, Georgia, Massachusetts, and Texas. The recalled products were shipped as recently as Thursday, July 17, and have "best by" dates as late as August 3. That means some of this lettuce could still be sitting in refrigerators right now.

Restaurant food distributor Sysco also took action, proactively removing all Taylor Farms processed iceberg lettuce products from Mexico from distribution and instructing customers to destroy them after learning regulators indicated a suspected link between Taylor Farms' lettuce and the five-state outbreak. Walmart said it "removed four bagged iceberg lettuce salad products from select locations as a precaution after receiving notice from our supplier." Taylor Farms also clarified one important point for concerned shoppers: none of its popular salad kits contain iceberg lettuce.

History Repeating — and What Comes Next

This isn't the first time Taylor Farms has been connected to a cyclosporiasis outbreak. In 2013, 631 people in 25 states were sickened by a salad mix linked to the company, health officials concluded. Taylor Farms produce has also been linked with previous illness outbreaks, including E. coli cases tied to slivered onions in 2024. The pattern is raising serious questions about supply chain oversight and the safety of produce sourced from Mexico.

The FDA is planning to inspect the Guanajuato facility in the coming days to determine how the cyclospora parasite got on the lettuce and track it through the supply chain. According to the CDC, a total of 1,644 people infected with Cyclospora and reporting exposure to Taco Bell have been reported by five states, with illnesses starting on dates ranging from May 13 to July 13, 2026. Anyone who purchased iceberg lettuce recently should check their fridge, discard any recalled product, and see a doctor if they've experienced prolonged digestive symptoms — and ask specifically for a Cyclospora test, since it won't show up on a standard stool panel.