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Chapter 10 : Reducing Foodborne Pathogen Persistence and Transmission in Animal Production Environments: Challenges and Opportunities

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Abstract:

Preharvest measures to reduce zoonotic pathogens in food animals are critical components in farm-to-table food safety approaches, which recognize that food production and safety occurs along a continuum. The encompassing goal of an integrated food safety program is to improve public health by reducing the risk of human foodborne illness, while the more specific goal of preharvest food safety strategies is to reduce the pathogen load of animals and/or animal products (such as milk or eggs) that are brought to harvest, in order to enhance the efficacy of postharvest interventions and reduce pathogens in the final product. As an example, the presence of pathogens in cattle feces and on cattle hides has been associated with beef carcass contamination ( ). Cattle with high levels of on their hides on entry into commercial processing were often coincident with preevisceration carcasses that were contaminated with the pathogen ( ). Correspondingly, studies conducted in commercial beef processing plants have demonstrated that reducing O157:H7 prevalence on cattle hides reduces its prevalence on resultant carcasses ( ). As another example, the risk of broiler carcass contamination is greater when there is a higher degree of intestinal colonization of birds entering slaughter ( ).

Citation: Berry E, Wells J. 2018. Reducing Foodborne Pathogen Persistence and Transmission in Animal Production Environments: Challenges and Opportunities, p 179-203. In Thakur S, Kniel K (ed), Preharvest Food Safety. ASM Press, Washington, DC. doi: 10.1128/microbiolspec.PFS-0006-2014
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Persistence and transmission of zoonotic pathogens in food animals and the production environment.

Citation: Berry E, Wells J. 2018. Reducing Foodborne Pathogen Persistence and Transmission in Animal Production Environments: Challenges and Opportunities, p 179-203. In Thakur S, Kniel K (ed), Preharvest Food Safety. ASM Press, Washington, DC. doi: 10.1128/microbiolspec.PFS-0006-2014
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