title: Prevalence of the virulence plasmid in Salmonella Typhimurium isolates from pigs.
abstract: To determine the prevalence of the virulence plasmid in Salmonella Typhimurium isolates from pigs in Japan, a total of 106 porcine isolates were subjected to PCR amplification for the detection of the virulence plasmid. Out of the isolates of S. Typhimurium, 38 (35.8%) harbored the virulence plasmid. The presence of the virulence plasmid was widely observed in the isolates from systemically infected pigs (92.0%, 23/25), compared with diarrheic (18.8%, 12/64) and apparently healthy pigs (17.6%, 3/17) (P<0.01).
authors.affiliation: Zen-noh Institute of Animal Health.
authors.forename: Takanori
authors.initials: T
authors.lastname: Namimatsu
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Asai
authors.forename: Takayuki
authors.initials: T
authors.lastname: Osumi
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Imai
authors.forename: Shizuo
authors.initials: S
authors.lastname: Sato
mesh_terms: D000818:Animals; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D005260:Female; D010957:Plasmids / Q000235:genetics*; D016133:Polymerase Chain Reaction / Q000662:veterinary; D012481:Salmonella Infections, Animal / Q000382:microbiology*; D012486:Salmonella typhimurium / Q000235:genetics* / Q000302:isolation & purification / Q000472:pathogenicity; D013552:Swine; D013553:Swine Diseases / Q000382:microbiology*; D014774:Virulence
chemical_list: D004269:DNA, Bacterial