CDC links Taco Bell lettuce to cyclospora outbreak across five U.S. states

On Thursday evening, federal health officials announced what many people eating at Taco Bell locations across the Midwest had begun to suspect: the lettuce in their meals was making them sick. The U.S. Centers for Disease Control and Prevention confirmed that shredded iceberg lettuce from a single Mexican supplier had introduced cyclospora, a microscopic parasite that causes severe intestinal distress, into restaurants across Indiana, Kentucky, Michigan, Ohio, and West Virginia.

The outbreak had grown quietly for months before the connection became clear. More than thirty states have now reported infections this year, and the numbers are staggering—current tallies have already surpassed the previous U.S. record of roughly 4,700 cases set in 2019. The parasite itself is not typically life-threatening; doctors treat it with antibiotics. But the illness it causes, cyclosporiasis, produces what the CDC describes with clinical understatement as watery diarrhea with frequent and sometimes explosive bowel movements. For thousands of people across the country, the infection meant days of incapacity and the kind of suffering that sends people searching for answers about what they ate and where.

The FDA's investigation traced the contamination back to a single supplier, though federal officials did not initially name the company. News reports citing anonymous sources familiar with the inquiry identified the supplier as Taylor Farms, a major food processing operation based in Salinas, California, with dozens of facilities across North America. Taco Bell responded quickly on Thursday, announcing that it had voluntarily removed the affected lettuce from its supply chain nationwide and would replace it within twenty-four hours in the states where the contamination had been detected. The company committed to stopping use of lettuce from the identified supplier entirely.

Cyclospora is an unusual culprit in the landscape of foodborne illness. It spreads through feces-contaminated water—typically irrigation water that has touched produce—and it thrives in warm weather, making late spring and summer its peak season. Unlike salmonella or E. coli, which dominate headlines and public consciousness, cyclospora outbreaks are comparatively rare. For years, few cases were reported in the United States at all. But beginning roughly a decade ago, the numbers began climbing, with particularly sharp increases in 2018 and 2019.

Experts attribute this rise to two factors working in tandem. Climate change has expanded the geographic range where the parasite can survive and spread. At the same time, improved detection methods—labs now test more specifically for cyclospora rather than relying on older screening tools that often missed it—have revealed cases that would have gone undiagnosed in the past. What looks like an epidemic may partly be a reckoning with infections that were always happening but finally being counted.

The FDA is now investigating whether contaminated lettuce from the same supplier remains in the food supply beyond the five states where Taco Bell infections were confirmed. The agency is working directly with Taylor Farms to trace the full scope of what left their facilities and where it ended up. For consumers, the immediate guidance is straightforward: do not eat shredded iceberg lettuce from Taco Bell in the affected states. For the broader food system, the outbreak is another reminder that the path from field to table remains vulnerable to contamination, and that a single supplier can introduce illness across state lines before anyone realizes what has happened.