Reinstein, S.Fox, J. TrentShi, X.Alam, M. J.Renter, David G.Nagaraja, Tiruvoor G.2018-07-252018-07-252009-08-15http://hdl.handle.net/2097/39067We determined the prevalence of Escherichia coli O157:H7 in organically and naturally raised beef cattle at slaughter and compared antibiotic susceptibility profiles of the isolates to those of isolates from conventionally raised beef cattle. The prevalences of E. coli O157:H7 were 14.8 and 14.2% for organically and naturally raised cattle, respectively. No major difference in antibiotic susceptibility patterns among the isolates was observed.© 2009, American Society for Microbiology. All Rights Reserved. This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).Text