The Centers for Disease Control and Prevention (CDC) identified shredded iceberg lettuce served at Taco Bell locations in Indiana, Kentucky, Michigan, Ohio, and West Virginia as the source of a cyclosporiasis outbreak that has sickened over 1,600 people across these states [1, 2]. The lettuce implicated in the outbreak was supplied by Taylor Farms, which is under investigation by the Food and Drug Administration (FDA) [1, 2].
No deaths due to the outbreak have been reported. However, cyclospora infections appear widespread. The CDC estimates nearly 7,000 people have been sickened nationwide, with Michigan alone accounting for 4,312 cases and 102 hospitalizations linked to the parasite [3]. Federal lawsuits have been filed in Michigan and Ohio against Taco Bell and its franchisees alleging negligence and breach of warranty related to the outbreak [4].
Yum! Brands, the parent company of Taco Bell, had identified food-borne pathogens including cyclospora as a top risk factor in its prior SEC filings [3]. Taco Bell voluntarily removed the potentially impacted lettuce from select states and pledged to replace the ingredient within 24 hours. A company spokesperson said, "The affected ingredient from our supplier is being indefinitely removed from our supply chain nationwide and will be replaced within 24 hours in select states" [1]. The company also confirmed it "has taken immediate action to voluntarily remove potentially impacted lettuce from a supplier in select states" [4].
The outbreak has had a measurable impact on Taco Bell's business. Foot traffic declined 4.6% nationally on July 10 and 5.8% on July 11, with larger declines of 7.3% and 10.9% respectively at Michigan locations as news of the outbreak spread [2]. According to location analytics firm Placer.ai, "cyclospora headlines and product removals at some quick-service restaurant chains appear to be weighing modestly on visitation" [2]. Yum Brands’ stock dropped nearly 7% over five days amid the outbreak news [1].
Other restaurant chains that use fresh lettuce, including Sweetgreen and Cava, saw initial stock declines but rebounded after the CDC cleared them of any link to the outbreak [1]. Foot traffic at other lettuce-heavy chains such as Panera Bread and Chopt also declined despite no association with the outbreak [2].
The FDA continues its investigation into Taylor Farms as federal authorities and Taco Bell monitor the situation. Lawsuits related to the outbreak remain ongoing.
Taco Bell’s removal and replacement of its shredded iceberg lettuce ingredient was announced on July 17 and is being implemented within 24 hours in affected states, as the company seeks to contain the outbreak’s spread [1, 4, 2].
