Massive cyclosporiasis outbreak linked to four more states

What This is

• A Cyclospora parasite outbreak linked to shredded iceberg lettuce has expanded to nine states, including Illinois, Kansas, Oklahoma, and Pennsylvania.
• Investigators have linked 1,947 illnesses and at least 98 hospitalizations in the nine-state cluster to exposures that included eating at Taco Bell; no deaths have been reported in this linked cluster.
• Across the wider U.S. season, the CDC has reported 4,173 laboratory-confirmed cases in 41 states and is reviewing about 7,400 additional reports, putting the suspected total above 11,500.
• Michigan has reported the largest share of cases, with state totals in the thousands and sizable hospitalizations reported there.
• The FDA and CDC say traceback and interviews point to shredded iceberg lettuce sourced from central Mexico and supplied by Taylor Farms de Mexico as the likely source for at least one major cluster.
• Taylor Farms issued a voluntary recall of iceberg lettuce shipped to food service and retailers, and Taco Bell pulled the product from restaurants; Taylor Farms also temporarily shut its central Mexico processing facility.
• The FDA also announced a separate Cyclospora outbreak under investigation with 72 cases, and it has not yet identified the product or locations linked to that cluster.
• Tracing Cyclospora can be slow because symptoms may appear days to weeks after exposure and because common tools used for other germs, like whole-genome sequencing, are not available for this parasite.
• Confusion increased after an FDA-reported positive Cyclospora test related to the lettuce was later described as a false positive, even as agencies kept pointing to lettuce based on other evidence.

Why This Matters

• When a common raw food like lettuce is implicated, people may avoid produce, which can change diets and strain public health advice.
• Confusing or reversed government messages can reduce trust in safety alerts, making it harder to protect the public during future outbreaks.
• Budget cuts and staffing losses can slow testing and food traceback, raising the chance that more people get sick before a source is pinned down.
• Disputes between U.S. and Mexican authorities can complicate cross-border food safety rules for widely traded produce.