Karmactive StaffA Taco Bell lettuce Cyclospora recall tied to a parasitic outbreak has left over 1,645 people confirmed sick across five states — and the parasite driving it is one most Americans have never heard of.
The U.S. Centers for Disease Control and Prevention linked the outbreak to shredded iceberg lettuce served at Taco Bell restaurants in Indiana, Kentucky, Michigan, Ohio, and West Virginia. Cases go back as far as May 13, 2026. The most recent illness reported started July 13, 2026. Of those confirmed sick, 141 people — roughly 9 percent — have been hospitalized. No deaths have been reported.
The cause is Cyclospora cayetanensis, a microscopic parasite, not a bacterium or virus. It lives in contaminated water and spreads when people eat produce irrigated or washed with water that has traces of human fecal matter. It is not spread person-to-person.
Symptoms are hard to miss — relentless watery diarrhea, cramping, nausea, and fatigue. Without treatment, symptoms can drag on from a few days to over a month. Antibiotics can clear it, but only after a doctor tests and confirms the diagnosis, since standard food poisoning treatments do not work on parasites.
Taylor Farms de Mexico, a large produce supplier based in Guanajuato, Mexico, was identified as the source. On July 17, 2026, the company removed all iceberg lettuce products it sources from central Mexico from the U.S. market. The recalled shredded iceberg lettuce was distributed to 27 states, with Marketside-brand products sold at Walmart stores carrying Best If Used By dates between July 18 and August 3, 2026. Distribution ran from June 29 through July 16.
A complication emerged mid-investigation. The FDA disclosed that a laboratory test on one of Taylor Farms de Mexico’s lettuce samples came back as a false positive for Cyclospora. Taylor Farms stated publicly that the FDA had apologized, but a U.S. Department of Health and Human Services spokesperson clarified that the FDA did not apologize — it simply communicated the facts of the finding. Former FDA Commissioner Dr. Scott Gottlieb said the false positive result does not clear Taylor Farms, noting that the sample in question came from a product shipped weeks earlier, separate from the lettuce that triggered the recall.
The FDA itself stood firm: “This false-positive lab sample does not change the basis for FDA’s ongoing outbreak investigation or the overwhelming epidemiological data supporting the current voluntary recall.”
This outbreak is not unique to 2026. A similar episode in 2013 saw Cyclospora-contaminated lettuce from Mexico sicken more than 400 people across 16 states, linked to Olive Garden and Red Lobster locations. The McDonald’s E. coli outbreak in 2024 showed how fast a restaurant supply chain contamination can reach across state lines.
What makes this year different is the scale. Cyclosporiasis cases in the U.S. have exploded in 2026. More than 11,500 confirmed or probable cases have been recorded nationally so far this year, compared to just 249 cases during the same period in 2025. Michigan alone has reported over 7,000 cases.
If you ate Taco Bell in any of those five states after late May 2026, or if you purchased Marketside shredded iceberg lettuce from Walmart before July 18, the FDA’s current guidance is not to eat it. Trim it from your list for now — the FDA says the voluntary recall stands regardless of the false positive.
