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Escherichia Coli O157:H7 In Ground Beef: Review of a Draft Risk Assessment
warranted confidence in the validity of the model’s output. It is more appropriate to include such material after the model has been refined. Alternatively, the level of uncertainty in these conclusions needs to be much more forcefully stated.
The committee believes that recommendations regarding the potential applications of the model’s various outputs would be a useful addition to the final risk assessment. The authors should make clear what they believe the model can and cannot be used for. As discussed in Chapter 7 of this review, they should devote particular attention to how anchoring can affect whether particular applications or inferences are appropriate.
The committee notes, as it has elsewhere, that the impact of cross contamination is not assessed in this draft chapter and that characterizations of uncertainty and variability in the results are either weak or absent.
The committee commends the authors for their considerable work in the development of a comprehensive chapter on risk characterization. Although there is much additional work to do to complete the risk characterization, the critical topics have been identified, and initial work presented for each.
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