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Journal of Clinical Microbiology, August 2005, p. 4208-4211, Vol. 43, No. 8
0095-1137/05/$08.00+0     doi:10.1128/JCM.43.8.4208-4211.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.

Dissemination of Salmonella enterica subsp. enterica Serovar Typhimurium var. Copenhagen Clonal Types through a Contract Heifer-Raising Operation

Narasimha V. Hegde,1 Michelle L. Cook,1 David R. Wolfgang,1 Brenda C. Love,1 Carol C. Maddox,2 and Bhushan M. Jayarao1*

Department of Veterinary Science, Pennsylvania State University, University Park, Pennsylvania,1 College of Veterinary Medicine, University of Illinois, Urbana-Champaign, Illinois2

Received 2 March 2005/ Returned for modification 15 April 2005/ Accepted 18 April 2005

Salmonella enterica subsp. enterica serovar Typhimurium var. Copenhagen isolates from a heifer-raising operation and from 11 dairy herds that had their calves contracted to the heifer-raising operation were examined for their phenotypic and genotypic characteristics. Results of the study showed that the heifer-raising operation could serve as a clearinghouse for Salmonella serovar Typhimurium var. Copenhagen and perhaps other Salmonella serotypes.

* Corresponding author. Mailing address: Department of Veterinary Science, Pennsylvania State University, University Park, PA 16802. Phone: (814) 863-5939. Fax: (814) 863-6140. E-mail: bmj3{at}psu.edu.

Journal of Clinical Microbiology, August 2005, p. 4208-4211, Vol. 43, No. 8
0095-1137/05/$08.00+0     doi:10.1128/JCM.43.8.4208-4211.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.



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