title: Dissemination of Salmonella enterica subsp. enterica Serovar Typhimurium var. Copenhagen clonal types through a contract heifer-raising operation.
abstract: 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.
authors.affiliation: Department of Veterinary Science, Pennsylvania State University, University Park, PA 16802, USA.
authors.forename: Narasimha V
authors.initials: NV
authors.lastname: Hegde
authors.forename: Michelle L
authors.initials: ML
authors.lastname: Cook
authors.forename: David R
authors.initials: DR
authors.lastname: Wolfgang
authors.forename: Brenda C
authors.initials: BC
authors.lastname: Love
authors.forename: Carol C
authors.initials: CC
authors.lastname: Maddox
authors.forename: Bhushan M
authors.initials: BM
authors.lastname: Jayarao
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000382:microbiology*; D012481:Salmonella Infections, Animal / Q000382:microbiology*; D012486:Salmonella typhimurium / Q000145:classification* / Q000187:drug effects / Q000235:genetics; D012703:Serotyping