title: Plasmid-mediated resistance to trimethoprim-sulfamethoxazole in Salmonella krefeld strains isolated in the United States.
abstract: Two types of transmissible plasmids which encode resistance to trimethoprim-sulfamethoxazole were found among five animal isolates of Salmonella krefeld. This is the first report of plasmid-mediated resistance to trimethoprim-sulfamethoxazole in Salmonella strains isolated in the United States.
mesh_terms: D000818:Animals; D000892:Anti-Infective Agents, Urinary / Q000494:pharmacology*; D004338:Drug Combinations / Q000494:pharmacology; D006801:Humans; D011815:R Factors; D012475:Salmonella / Q000187:drug effects / Q000235:genetics*; D013420:Sulfamethoxazole / Q000494:pharmacology*; D014295:Trimethoprim / Q000494:pharmacology*; D015662:Trimethoprim, Sulfamethoxazole Drug Combination; D014481:United States
chemical_list: D000892:Anti-Infective Agents, Urinary; D004338:Drug Combinations; D015662:Trimethoprim, Sulfamethoxazole Drug Combination; D014295:Trimethoprim; D013420:Sulfamethoxazole