title: Comparative activities of eight quinolones against members of the Bacteroides fragilis group.
abstract: The in vitro activities of five new quinolones (clinafloxacin [CI-960 or PD-127391], BAY Y 3118, E-4868, E-5065, and E-5068) against 100 Bacteroides fragilis group bacterial isolates were compared with those of ciprofloxacin, ofloxacin, and sparfloxacin. Overall, E-5068 was the most active in vitro (MIC for 90% of isolates tested [MIC90], 0.25 microgram/ml); this was followed by clinafloxacin and BAY Y 3118 (MIC90, 0.5 microgram/ml). Ciprofloxacin, sparfloxacin, and ofloxacin were the least active (MIC90s, 64, 16, and 16 micrograms/ml, respectively). B. fragilis and Bacteroides caccae were more susceptible than the other members of the B. fragilis group to all of the quinolones tested.
authors.affiliation: Department of Microbiology, University of Seville.
authors.forename: M V
authors.initials: MV
authors.lastname: Borobio
authors.forename: M
authors.initials: M
authors.lastname: Conejo
authors.forename: E
authors.initials: E
authors.lastname: Ramirez
authors.forename: A I
authors.initials: AI
authors.lastname: Suarez
authors.forename: E J
authors.initials: EJ
authors.lastname: Perea
mesh_terms: D000890:Anti-Infective Agents / Q000494:pharmacology*; D001441:Bacteroides fragilis / Q000187:drug effects*; D002939:Ciprofloxacin / Q000494:pharmacology; D024841:Fluoroquinolones; D008826:Microbial Sensitivity Tests; D015242:Ofloxacin / Q000494:pharmacology; D015363:Quinolones / Q000494:pharmacology
chemical_list: D000890:Anti-Infective Agents; D024841:Fluoroquinolones; D015363:Quinolones; C081131:E-4868; C079807:Bay Y3118; D002939:Ciprofloxacin; C057477:clinafloxacin; D015242:Ofloxacin; C061363:sparfloxacin