Super shedding of Escherichia coli O157:H7 by cattle and the impact on beef carcass contamination

Meat Science
Terrance M ArthurMohammad Koohmaraie

Abstract

Beef carcass contamination is a direct result of pathogen transfer from cattle hides harboring organisms such as enterohemorrhagic Escherichia coli. Hide contamination occurs from direct and indirect fecal contamination in cattle production and lairage environments. In each of these environments, individual animals shedding E. coli O157:H7 at high levels (>10(4) CFU/g of feces, hereafter referred to as "super shedders") can have a disproportionate effect on cattle hide and subsequent carcass contamination. It is not known what criteria must be met to cause an animal to shed at levels exceeding 10(4) CFU/g. Understanding the factors that play a role in super shedding will aid in minimizing or eliminating the super shedding population. Interventions that would prevent super shedding in the cattle population should reduce E. coli O157:H7 transmission in the production and lairage environments resulting in reduced risk of beef carcass contamination and a safer finished product.

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Citations

Dec 14, 2011·Animal Health Research Reviews·J M SoonR N Baines
Aug 18, 2009·Applied and Environmental Microbiology·Terrance M ArthurMohammad Koohmaraie
Apr 3, 2012·Applied and Environmental Microbiology·Sangeetha Ananda BaskaranKumar Venkitanarayanan
Aug 30, 2008·Applied and Environmental Microbiology·A E MatherD J Mellor
May 7, 2013·Applied and Environmental Microbiology·Terrance M ArthurJames L Bono
Jan 18, 2011·Applied and Environmental Microbiology·Dayna M Brichta-HarhayMohammad Koohmaraie
Mar 15, 2011·Applied and Environmental Microbiology·Terrance M ArthurMohammad Koohmaraie
Nov 19, 2013·International Journal of Environmental Research and Public Health·Rached IsmaïlMichel Fédérighi
Jul 16, 2013·Research in Veterinary Science·Dina KleinlützumDavid Schley
May 9, 2012·Meat Science·Ian Jenson, John Sumner
Mar 15, 2016·Foodborne Pathogens and Disease·Brandon E LuedtkeTerrance M Arthur
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