Escherichia coli O157:H7 in Ground Beef Review of a Draft Risk Assessment (2002) / Chapter Skim
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4 Preparation Module
4 Preparation Module
Pages 62-70
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From page 62... ...
Consumption patterns are modeled as being dependent on the age of the consumer and the location of the meal. Ground beef is consumed in many forms, but the FSIS draft risk assessment focuses on hamburger patties and on ground beef used as a major ingredient in beef-based foods (such as meatballs and meatloaf)
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From page 63... ...
cold 0157:H7 directly, two studies released while the draft risk assessment was under development support the notion that cross contamination during food preparation is an important risk factor for foodborne illness in general. Audits International (2001)
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From page 64... ...
The committee understands and respects the decision of the modelers to establish reasonable bounds on the reach of their work; it is a necessary part of any risk assessment. It observes, however, that cross contamination during preparation is an established, important risk factor; that the lack of data on its effects is no more severe than the lack of data for some other parts of the draft model; and that further attention to cross contamination will help to lay the groundwork for an analysis and better identify the data gaps that need to be filled by future research efforts.
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From page 65... ...
In summary, disregarding the contribution of cross contamination of E cold 0157:H7-tainted raw ground beef to human illness weakens the draft risk assessment.
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From page 66... ...
, whereas an earlier case-control study based on data obtained through the same FoodNet system identified eating hamburgers served at table-service restaurants but not restaurants of major fast-food chains as a major risk factor (Kassenborg et al., 1998~. The committee recommends that each location the home, fast-food restaurants, and the remainder of HRI facilities where ground beef is cooked be modeled separately.
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From page 67... ...
Because of the importance of log-reduction information for interpreting calculated estimates, the committee recommends that the material in the footnote be moved to the text after the estimates that are presented as having no log reduction. More important, simple extrapolation of data from the 1994-1996 and 1998 CSFII surveys for estimating the annual number of raw ground-beef servings is scientifically unfounded because of the small number of obser3 D (or decimal reduction)
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From page 68... ...
Insight into another potentially important variable is provided by the CSFII. The 1994-1996 data regarding ground-beef consumption, repro4 Faced with a similar problem in their risk assessment of Shiga-producing E
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From page 70... ...
The gain in precision from including sex is likely to be small compared with other elements for which data are weak or absent. The committee suggests that the final risk assessment at least note the possible role of sex for completeness and future reference.
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