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.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1233933PMC
http://dx.doi.org/10.1128/JCM.43.8.4208-4211.2005DOI Listing

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