Six cyclospora outbreaks are active in the U.S. Only one is tied to a food source.

The FDA is currently investigating six separate cyclospora outbreaks, and only one has so far been linked to a specific food: shredded iceberg lettuce. Cyclospora is a pathogen that causes cyclosporiasis, an intestinal illness that reached record case numbers in recent weeks. A former director of the FDA's Center for Food Safety and Applied Nutrition says the public conversation around this outbreak is missing a significant point.

What FDA is actually investigating

Six outbreaks. One confirmed food source. That ratio is the part of this story getting lost.

The FDA's Center for Food Safety and Applied Nutrition is the federal office that oversees both food safety standards and nutrition policy. A former director who spent nearly a decade in that role writes that food safety and nutrition are interdependent, linked in ways that a single-source outbreak story tends to obscure. The way public health officials and consumers respond to a food-safety event has direct consequences for nutrition outcomes, and the current outbreak is making that connection visible.

The five outbreaks without a confirmed link

Record cyclosporiasis cases have put this outbreak season in the headlines. The association with shredded iceberg lettuce has given the story a concrete product consumers can avoid. But five of the six outbreaks under active FDA investigation have no confirmed food link.

That gap matters. An outbreak without a named source is not an outbreak without a source. The investigation continues. Consumers who respond by avoiding one specific product may be managing a risk they have already heard about, while the pathways behind the other five outbreaks remain unresolved.

The food safety and nutrition connection

The former center director's argument is that food safety events and nutrition outcomes are tightly linked, and managing them separately produces gaps in both.

When an outbreak generates fear around a category of food, the effect on what people eat does not end when the outbreak does. Avoiding one item because its name appeared in coverage, while five other active outbreaks remain without a confirmed source, is a response shaped by visibility rather than by the investigation's current state.

That experience, the official writes, convinced them that supporting both food safety and nutrition is necessary to improve population health. Five of the six active cyclospora outbreaks under FDA investigation remain without a confirmed exposure source.