title: In vitro susceptibilities of Nocardia species to newer antimicrobial agents.
abstract: The in vitro activities of various quinolones, two newer cephalosporins, and imipenem against 23 strains of Nocardia asteroides, 4 strains of Nocardia brasiliensis, and 4 strains of Nocardia caviae were determined by an agar dilution method. PD-117558, a newer carboxyquinolone, and imipenem were the most active agents tested, inhibiting 90% of N. asteroides isolates at an MIC of 2 micrograms/ml. Of the 23 strains of N. asteroides, 15 were susceptible to cefpirome and 10 were susceptible to ciprofloxacin. The N. brasiliensis and N. caviae strains were very susceptible to PD-117558 (MIC, less than or equal to 1 microgram/ml), moderately susceptible to ciprofloxacin, and resistant to most of the other tested drugs.
authors.affiliation: Department of Medical Specialties, University of Texas System Cancer Center, M. D. Anderson Hospital and Tumor Institute, Houston 77030.
authors.forename: P
authors.initials: P
authors.lastname: Berkey
authors.forename: D
authors.initials: D
authors.lastname: Moore
authors.forename: K
authors.initials: K
authors.lastname: Rolston
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D008826:Microbial Sensitivity Tests; D009615:Nocardia / Q000187:drug effects*
chemical_list: D000900:Anti-Bacterial Agents