title: Synergy tests by E test and checkerboard methods of antimicrobial combinations against Brucella melitensis.
abstract: Two different synergy testing methods, the checkerboard and the E test methods, were used to compare the in vitro efficacies of various antimicrobial combinations against 16 Brucella melitensis strains isolated from blood cultures. The rate of agreement of the E test and checkerboard methods was found to be 55%. The most concordant results were found for the streptomycin-doxycycline combination in 12 (75%) tests, in which four strains showed synergistic activity by E test and antagonistic activity by the checkerboard method and in which one strain showed antagonistic activity by both methods. Even though each of these methods uses different conditions and endpoints, the results of both methods frequently agreed.
authors.affiliation: Gaziantep University Medical Faculty, Department of Microbiology and Clinical Microbiology, Universite Bulvari, 27310 Gaziantep, Turkey.
authors.forename: Gani
authors.initials: G
authors.lastname: Orhan
authors.forename: Aysen
authors.initials: A
authors.lastname: Bayram
authors.forename: Yasemin
authors.initials: Y
authors.lastname: Zer
authors.forename: Iclal
authors.initials: I
authors.lastname: Balci
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D017347:Brucella melitensis / Q000187:drug effects*; D002006:Brucellosis / Q000382:microbiology; D004357:Drug Synergism; D004359:Drug Therapy, Combination / Q000494:pharmacology*; D006801:Humans; D008826:Microbial Sensitivity Tests / Q000379:methods*
chemical_list: D000900:Anti-Bacterial Agents