Food Recall: Precautionary Action Under Epidemiological Uncertainty
When Should Evidence Trigger a Voluntary Recall?
Two recent outbreak investigations have brought a recurring tension in food safety risk management into sharp focus: when epidemiological evidence strongly implicates a product as the probable source of an outbreak, but laboratory testing of the product itself has not confirmed contamination, what standard of evidence should trigger a voluntary recall?
In both the ByHeart infant botulism investigation (48 hospitalized infants across 19 states; contamination later confirmed through WGS-matched product isolates) and the ongoing RAW FARM E. coli O157:H7 investigation (9 cases, majority in children under five; no positive product tests to date), manufacturers initially cited negative or absent product test results as justification for declining or limiting voluntary recalls — despite strong epidemiological signals and vulnerable populations at risk.
In this poll we are asking the SciPinion community to evaluate the scientific reasoning underlying recall decision-making when causal probability is high but laboratory confirmation is incomplete.