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Applied and Environmental Microbiology, February 2007, p. 1002-1004, Vol. 73, No. 3
0099-2240/07/$08.00+0     doi:10.1128/AEM.02037-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

SHORT REPORT

Prevalence of Escherichia coli O157:H7 in Gallbladders of Beef Cattle{triangledown} ,{dagger}

S. Reinstein, J. T. Fox, X. Shi, and T. G. Nagaraja*

Department of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas 66506-5606

Received 28 August 2006/ Accepted 18 November 2006

Gallbladders and rectal contents were collected from cattle (n = 933) at slaughter to determine whether the gallbladder harbors Escherichia coli O157:H7. Both gallbladder mucosal swabs and homogenized mucosal tissues were used for isolation. Only five gallbladders (0.54%) were positive for E. coli O157:H7. Fecal prevalence averaged 7.1%; however, none of the cattle that had E. coli O157:H7 in the gallbladder was positive for E. coli O157:H7 in feces. Therefore, the gallbladder does not appear to be a common site of colonization for E. coli O157:H7 in beef cattle.

* Corresponding author. Mailing address: Department of Diagnostic Medicine and Pathobiology, 1800 Denison Avenue, Manhattan, KS 66506-5606. Phone: (785) 532-1214. Fax: (785) 532-4851. E-mail: Tnagaraj{at}vet.k-state.edu.

{triangledown} Published ahead of print on 8 December 2006.

{dagger} This paper is contribution no. 07-113-J from the Kansas Agricultural Experiment Station.

Applied and Environmental Microbiology, February 2007, p. 1002-1004, Vol. 73, No. 3
0099-2240/07/$08.00+0     doi:10.1128/AEM.02037-06
Copyright © 2007, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Reinstein, S., Fox, J. T., Shi, X., Alam, M. J., Renter, D. G., Nagaraja, T. G. (2009). Prevalence of Escherichia coli O157:H7 in Organically and Naturally Raised Beef Cattle. Appl. Environ. Microbiol. 75: 5421-5423 [Abstract] [Full Text]  
  • Stamm, I., Mohr, M., Bridger, P. S., Schropfer, E., Konig, M., Stoffregen, W. C., Dean-Nystrom, E. A., Baljer, G., Menge, C. (2008). Epithelial and Mesenchymal Cells in the Bovine Colonic Mucosa Differ in Their Responsiveness to Escherichia coli Shiga Toxin 1. Infect. Immun. 76: 5381-5391 [Abstract] [Full Text]  


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