Taco Bell has faced an outbreak of cyclosporiasis, a diarrhoeal illness caused by the Cyclospora parasite, which investigators traced to shredded iceberg lettuce supplied by Taylor Farms. The finding directed health officials' attention to the fast-food chain's fresh produce supply chain as the likely route of infection for affected customers, a significant concern given how readily the parasite can spread through contaminated fresh vegetables.

Beyond identifying the supplier as the probable source, further specifics such as the total number of cases, the regions or states involved, and formal responses from Taco Bell, Taylor Farms or public health authorities were not detailed. Outbreaks of this kind linked to fresh produce have previously led to product recalls and wider scrutiny of supply chains in the United States, though no such follow-up measures were confirmed in this instance.