Synergistic activities of colistin combined with other antimicrobial agents against colistin-resistant Acinetobacter baumannii clinical isolates.

ABSTRACT: Emerging resistance to colistin in Acinetobacter baumannii clinical strains is concerning because of the limited therapeutic choices for these important clinical pathogens. We studied the in vitro activities of different colistin-based antimicrobial agent combinations against colistin-resistant Acinetobacter baumannii. Fourteen clinical isolates of colistin-resistant Acinetobacter baumannii were obtained between 2015 and 2016. To identify colistin-based combinations with synergistic activities, multiple two antimicrobial combinations based on 8 commercially available drugs were evaluated by the checkerboard method. The most effective colistin-based combinations were vancomycin, aztreonam, ceftazidime and imipenem which showed synergistic activities against all examined strains. Colistin-ri

SUBMITTER: Almutairi MM 

PROVIDER: S-EPMC9278772 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature