title: Clonal spread of tetracycline-resistant Salmonella typhimurium in Danish dairy herds.
authors.affiliation: Danish Veterinary Laboratory, Copenhagen, Denmark.
authors.forename: F M
authors.initials: FM
authors.lastname: Aarestrup
authors.forename: N E
authors.initials: NE
authors.lastname: Jensen
authors.forename: D L
authors.initials: DL
authors.lastname: Baggesen
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology* / Q000627:therapeutic use; D015373:Bacterial Typing Techniques; D002417:Cattle; D002418:Cattle Diseases / Q000188:drug therapy* / Q000453:epidemiology; D003718:Denmark / Q000453:epidemiology; D004352:Drug Resistance, Microbial; D005260:Female; D012481:Salmonella Infections, Animal / Q000188:drug therapy* / Q000453:epidemiology; D012486:Salmonella typhimurium / Q000187:drug effects* / Q000235:genetics / Q000254:growth & development*; D013752:Tetracycline / Q000494:pharmacology* / Q000627:therapeutic use; D013753:Tetracycline Resistance / Q000235:genetics*
chemical_list: D000900:Anti-Bacterial Agents; D013752:Tetracycline