Ex-FDA Chief Warns of 'Catastrophic' Cyclospora Response

A former Food and Drug Administration (FDA) official has voiced grave concerns over the federal government's handling of a national cyclospora outbreak, describing the response as approaching a "catastrophic level." Frank Yiannas, who previously served as the FDA's deputy commissioner for food policy and response, highlighted an unusually high volume of illnesses and significant consumer confusion.

Yiannas specifically pointed to a lack of adequate federal coordination and communication, particularly following a recent incident where a laboratory finding of cyclospora in lettuce samples was later determined to be a false positive. He stressed that his criticism targets the system's weaknesses rather than specific agencies. As of July 24, 2026, federal officials are investigating multiple cyclospora outbreaks, with one multistate outbreak linked to iceberg lettuce supplied by Taylor Farms de Mexico being particularly significant.

The CDC has reported 4,173 laboratory-confirmed domestically acquired cases, with over 7,400 additional unconfirmed cases. State totals are considerably higher, with Michigan alone reporting over 8,000 illnesses. Yiannas resigned from the FDA in early 2023, citing frustration with the agency's organizational structure.

The current outbreak is one of the largest cyclospora events on record in the U.S., with 1,947 people reportedly sickened by the outbreak linked to Taylor Farms lettuce. Taylor Farms has issued a recall for iceberg lettuce sourced from central Mexico and has suspended production from that region. The company states that none of its products linked to the outbreak have tested positive for cyclospora and that the FDA has no confirmed positive sample results as of July 24, 2026.

Cyclospora is a microscopic parasite causing an intestinal illness contracted through contaminated food or water, often raw produce. Symptoms include prolonged diarrhea, stomach cramps, and fatigue. The parasite's lifecycle can make outbreaks difficult to trace. Historically, major outbreaks have been linked to raspberries, salad mixes, cilantro, basil, and contaminated salad mix served at fast-food establishments.