title: Plasmid determined drug resistance in clinically isolated Escherichia coli.
abstract: The results of a survey for the presence of R plasmids in 100 clinically isolated strains of Escherichia coli are presented. Sixty-nine per cent of the strains were resistant to at least one of the antimicrobial agents tested and 63.7% of the resistant strains transferred all or part of their resistance genes to Escherichia coli k 12.
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D004926:Escherichia coli / Q000187:drug effects / Q000235:genetics*; D004927:Escherichia coli Infections / Q000382:microbiology; D006801:Humans; D008826:Microbial Sensitivity Tests; D011815:R Factors
chemical_list: D000900:Anti-Bacterial Agents