Plot twist: FDA says lettuce theory falls apart - YouTube
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The FDA just ruled out lettuce as the source in a contamination investigation — so what was actually behind the outbreak?
Anchoring BiasFalsificationismEpidemiological TracingBayesian Updating
Theory Briefing
- The FDA publicly walked back the lettuce theory, shifting the direction of an active contamination investigation.
- Ruling out a leading suspect mid-inquiry forces investigators to revisit the evidence chain from the start.
- Public health scares often anchor early on a plausible culprit — the FDA's reversal shows how costly that anchoring can be.