A chicken processing model for quantitative microbiological risk assessment of Campylobacter

M.J. Nauta, H.J. van der Fels-Klerx, R. Cooke, L. Goossens, A. Havelaar

    Research output: Contribution to journalMeeting AbstractAcademic

    Abstract

    A "farm to fork" risk model will be constructed for the CARMA (Campylobacter Risk Management and Assessment) project. Aim of the model is not only to assess human exposure to Campylobacter as a consequence of the consumption of chicken meat, but also to compare the effects of intervention measures proposed to reduce risks. As part of this model, a chicken processing model is being developed. This model describes the transmission of Campylobacter through industrial processing of broiler chickens. The model is different from previously developed models: it is a dynamic non-linear model which, in all relevant stages of the process, explicitly incorporates cross contamination, both from chicken to chicken as by fecal leakage, and inactivation and removal of Campylobacter. This is particularly relevant when the effects of interventions should be evaluated. By lack of suitable quantitative data, a formal expert judgement study has been performed to obtain estimates of the model parameters. These estimates, with their attending uncertainty, have been derived from the results of individual interviews with 12 independent experts. The experts' assessments were weighted for their performance, calibrated by a separate set of questions. With the model, we can compare the effects on broiler chicken contamination of different sets of control measures like hygienic measures at the farm, logistic slaughter, decontamination during processing and decontamimation at the end of processing, etc. The first results of this comparison and its impact on the integrative approach applied within the CARMA project will be shown.
    Original languageEnglish
    Pages (from-to)27
    JournalInternational Journal of Medical Microbiology
    Volume293
    Issue numbersuppl. 35
    DOIs
    Publication statusPublished - 2003

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    Campylobacter
    Chickens
    Risk Management
    Decontamination
    Meat
    Linear Models
    Farms

    Cite this

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    title = "A chicken processing model for quantitative microbiological risk assessment of Campylobacter",
    abstract = "A {"}farm to fork{"} risk model will be constructed for the CARMA (Campylobacter Risk Management and Assessment) project. Aim of the model is not only to assess human exposure to Campylobacter as a consequence of the consumption of chicken meat, but also to compare the effects of intervention measures proposed to reduce risks. As part of this model, a chicken processing model is being developed. This model describes the transmission of Campylobacter through industrial processing of broiler chickens. The model is different from previously developed models: it is a dynamic non-linear model which, in all relevant stages of the process, explicitly incorporates cross contamination, both from chicken to chicken as by fecal leakage, and inactivation and removal of Campylobacter. This is particularly relevant when the effects of interventions should be evaluated. By lack of suitable quantitative data, a formal expert judgement study has been performed to obtain estimates of the model parameters. These estimates, with their attending uncertainty, have been derived from the results of individual interviews with 12 independent experts. The experts' assessments were weighted for their performance, calibrated by a separate set of questions. With the model, we can compare the effects on broiler chicken contamination of different sets of control measures like hygienic measures at the farm, logistic slaughter, decontamination during processing and decontamimation at the end of processing, etc. The first results of this comparison and its impact on the integrative approach applied within the CARMA project will be shown.",
    author = "M.J. Nauta and {van der Fels-Klerx}, H.J. and R. Cooke and L. Goossens and A. Havelaar",
    year = "2003",
    doi = "10.1016/S1433-1128(03)80496-5",
    language = "English",
    volume = "293",
    pages = "27",
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    A chicken processing model for quantitative microbiological risk assessment of Campylobacter. / Nauta, M.J.; van der Fels-Klerx, H.J.; Cooke, R.; Goossens, L.; Havelaar, A.

    In: International Journal of Medical Microbiology, Vol. 293, No. suppl. 35, 2003, p. 27.

    Research output: Contribution to journalMeeting AbstractAcademic

    TY - JOUR

    T1 - A chicken processing model for quantitative microbiological risk assessment of Campylobacter

    AU - Nauta, M.J.

    AU - van der Fels-Klerx, H.J.

    AU - Cooke, R.

    AU - Goossens, L.

    AU - Havelaar, A.

    PY - 2003

    Y1 - 2003

    N2 - A "farm to fork" risk model will be constructed for the CARMA (Campylobacter Risk Management and Assessment) project. Aim of the model is not only to assess human exposure to Campylobacter as a consequence of the consumption of chicken meat, but also to compare the effects of intervention measures proposed to reduce risks. As part of this model, a chicken processing model is being developed. This model describes the transmission of Campylobacter through industrial processing of broiler chickens. The model is different from previously developed models: it is a dynamic non-linear model which, in all relevant stages of the process, explicitly incorporates cross contamination, both from chicken to chicken as by fecal leakage, and inactivation and removal of Campylobacter. This is particularly relevant when the effects of interventions should be evaluated. By lack of suitable quantitative data, a formal expert judgement study has been performed to obtain estimates of the model parameters. These estimates, with their attending uncertainty, have been derived from the results of individual interviews with 12 independent experts. The experts' assessments were weighted for their performance, calibrated by a separate set of questions. With the model, we can compare the effects on broiler chicken contamination of different sets of control measures like hygienic measures at the farm, logistic slaughter, decontamination during processing and decontamimation at the end of processing, etc. The first results of this comparison and its impact on the integrative approach applied within the CARMA project will be shown.

    AB - A "farm to fork" risk model will be constructed for the CARMA (Campylobacter Risk Management and Assessment) project. Aim of the model is not only to assess human exposure to Campylobacter as a consequence of the consumption of chicken meat, but also to compare the effects of intervention measures proposed to reduce risks. As part of this model, a chicken processing model is being developed. This model describes the transmission of Campylobacter through industrial processing of broiler chickens. The model is different from previously developed models: it is a dynamic non-linear model which, in all relevant stages of the process, explicitly incorporates cross contamination, both from chicken to chicken as by fecal leakage, and inactivation and removal of Campylobacter. This is particularly relevant when the effects of interventions should be evaluated. By lack of suitable quantitative data, a formal expert judgement study has been performed to obtain estimates of the model parameters. These estimates, with their attending uncertainty, have been derived from the results of individual interviews with 12 independent experts. The experts' assessments were weighted for their performance, calibrated by a separate set of questions. With the model, we can compare the effects on broiler chicken contamination of different sets of control measures like hygienic measures at the farm, logistic slaughter, decontamination during processing and decontamimation at the end of processing, etc. The first results of this comparison and its impact on the integrative approach applied within the CARMA project will be shown.

    U2 - 10.1016/S1433-1128(03)80496-5

    DO - 10.1016/S1433-1128(03)80496-5

    M3 - Meeting Abstract

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    JO - International Journal of Medical Microbiology

    JF - International Journal of Medical Microbiology

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