title: In vitro antistaphylococcal activity and testing of RP 59500, a new streptogramin, by two methods.
abstract: The in vitro antistaphylococcal activity of RP 59500, a new streptogramin, was comparable to those of vancomycin and teicoplanin against Staphylococcus aureus, and RP 59500 was the most active agent against coagulase-negative staphylococci. All staphylococcal strains were inhibited by 4 micrograms of RP 59500 per ml, including multiply resistant strains. Broth microdilution and agar dilution testing gave comparable results in 97% of the tests with RP 59500.
authors.affiliation: Louisiana State University Medical Center, New Orleans 70112.
authors.forename: K E
authors.initials: KE
authors.lastname: Aldridge
authors.forename: D D
authors.initials: DD
authors.lastname: Schiro
authors.forename: L M
authors.initials: LM
authors.lastname: Varner
mesh_terms: D006801:Humans; D008826:Microbial Sensitivity Tests; D013210:Staphylococcus / Q000187:drug effects*; D014769:Virginiamycin / Q000494:pharmacology*
chemical_list: D014769:Virginiamycin; C062940:quinupristin-dalfopristin