title: Transmissible antibiotic resistance in Salmonella isolated from random-source cats purchased for use in research.
abstract: Salmonella isolates from random-source cats designated for use in research were examined for antibiotic susceptibilities and the presence of plasmids containing R factors. The serotypes studied were Salmonella derby, S typhimurium, S anatum, S enteritidis, and S bredeney. Eighty percent of the isolates were resistant to one or more antibiotics. The greatest frequency of resistance was to streptomycin. The majority of the salmonella isolates transferred all or a part of their antibiotic resistance to an Escherichia coli K-12 recipient. Thermosensitive R factors were found in two S typhimurium isolates.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology; D000818:Animals; D002415:Cats / Q000382:microbiology*; D002509:Cephaloridine / Q000494:pharmacology; D010403:Penicillin Resistance; D011815:R Factors; D012475:Salmonella / Q000187:drug effects* / Q000302:isolation & purification; D012477:Salmonella enteritidis / Q000187:drug effects / Q000302:isolation & purification; D012486:Salmonella typhimurium / Q000187:drug effects / Q000302:isolation & purification; D013307:Streptomycin / Q000494:pharmacology
chemical_list: D000667:Ampicillin; D002509:Cephaloridine; D013307:Streptomycin