Simulating Escherichia coli O157:H7 transmission to assess effectiveness of interventions in Dutch dairy-beef slaughterhouses
| Autor: | Annet G.J. Velthuis, Henk Hogeveen, Ruud B.M. Huirne, Bouda Vosough Ahmadi |
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| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: |
Veterinary medicine
Aerobic bacteria Food Handling Psychological intervention spread steam pasteurization law.invention hides contamination Food Animals law Risk Factors Medicine Escherichia coli Infections Netherlands food and beverages decontamination Transmission (mechanics) Milk VTEC Food Irradiation Monte Carlo Method Abattoirs aerobic-bacteria Meat prevalence salmonella Bedrijfseconomie Cattle Diseases Food Contamination Escherichia coli O157 Business Economics Food microbiology Animals Humans Computer Simulation Dairy cattle business.industry carcasses Food safety Biotechnology Consumer Product Safety MGS Food Microbiology Animal Science and Zoology Food irradiation Cattle business enterobacteriaceae |
| Zdroj: | Preventive Veterinary Medicine, 77(1/2), 15-30 Preventive Veterinary Medicine 77 (2006) 1/2 |
| ISSN: | 0167-5877 |
| DOI: | 10.1016/j.prevetmed.2006.05.011 |
| Popis: | Beef contamination with Escherichia coli O157:H7 (VTEC) is an important food-safety issue. To investigate the effectiveness of interventions against VTEC in Dutch beef industrial slaughterhouses that slaughter 500 dairy cattle per day, a Monte Carlo simulation model was built. We examined seven carcass-antimicrobial interventions, namely: hot-water wash, lactic-acid rinse, trim, steam-vacuum, steam-pasteurization, hide-wash with ethanol and gamma irradiation, and their combinations. The estimated daily prevalence of contaminated beef-carcass quarters as the output of the model was 9.2%. Contaminated was defined as containing one or more CFU on the surface of a carcass quarter at the end of the quartering stage. Single interventions (except irradiation) could reduce the prevalence to from 6.2% to 1.7%, whereas the combination of interventions could lower it to from 1.2% to 0.1%. The most powerful intervention was irradiation, which could reduce the prevalence to |
| Databáze: | OpenAIRE |
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