antibiotic combinations

Influence of different antibiotic groups on the development of mutational resistance to colistin among Klebsiella pneumoniae

Objective. To determine the concentration of colistin, preventing the selection of colistin-resistant mutants of K. pneumoniae, and to evaluate the effect of antibiotics of different groups on the development of mutational resistance to colistin. Materials and Methods. Minimum inhibitory concentrations (MIC) of colistin were determined for 88 K. pneumoniae strains by the method of serial microdilutions in broth, and carbapenemase genes were detected. The selection of colistin-resistant subpopulations was performed on cation-adjusted MüllerHinton agar (MHA) with the addition of 16 mg/l colistin.

Susceptibility to antibiotic combinations among nosocomial carbapenemase-producing Gram-negative bacteria isolated in Belarus

Objective. To assess a susceptibility to antibiotic combinations in nosocomial carbapenemase-producing Klebsiella pneumoniae, Pseudomonas aeruginosa and Acinetobacter baumannii isolates using a modified method of multiple combination bactericidal testing (MCBT). Materials and Methods. A total of 178 isolates (63 K. pneumoniae isolates, 31 P. aeruginosa isolates, 84 A. baumannii isolates) obtained in the 2013-2017 from hospitalized patients in 28 public health organizations in 4 Belarus regions were included in the study.

Bacteriophage Preparations and Antibiotic Combinations: In vitro Activity Against Extensively Drug-Resistant Isolates of Pseudomonas aeruginosa ST235

The activity of 11 antibiotics combinations and 4 commercially available preparations for phagotherapy in regard to metallo-beta-lactamase (MBL) producing Pseudomonas aeruginosa clinical isolates of sequence type 235 (ST 235) belonging to the clonal …