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- W3210366315 abstract "Concerns regarding carbapenem-resistant Klebsiella pneumoniae (CR-Kp), especially in bloodstream infections (BSIs), are continuing to increase worldwide. Several novel agents with activity against BSI CR-Kp have been approved or are in late-stage clinical development. In this study, the antibacterial effects of ceftazidime/avibactam (CZA), aztreonam/avibactam (AZA), meropenem/vaborbactam (MEV), imipenem-cilastatin/relebactam (ICR) and eravacycline (ERV) against three colistin-resistant CR-Kp (COLR-Kp) and four CZA-resistant CR-Kp (CZAR-Kp) were tested by time-kill assay. Klebsiella pneumoniae ATCC® BAA-1705TM was used as a control strain. Two COLR-Kp isolates carried the blaKPC-2 gene and four CAZR-Kp isolates carried metallo-β-lactamase genes. The results revealed that ERV resulted in re-growth of seven tested isolates. CZA and MEV showed a bactericidal effect against isolates harbouring blaKPC-2. ICR reduced the population of six isolates to >5 log10 CFU/mL compared with the initial count. AZA showed a bactericidal effect (>5 log10 CFU/mL) against seven isolates and a bacteriostatic effect (<3 log10 CFU/mL) against one CZAR-Kp isolate. Therefore, AZA and ICR are effective therapeutic candidates for COLR-Kp and CZAR-Kp isolates." @default.
- W3210366315 created "2021-11-08" @default.
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- W3210366315 date "2021-12-01" @default.
- W3210366315 modified "2023-10-18" @default.
- W3210366315 title "New options for bloodstream infections caused by colistin‐ or ceftazidime/avibactam‐resistant Klebsiella pneumoniae" @default.
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- W3210366315 doi "https://doi.org/10.1016/j.ijantimicag.2021.106458" @default.
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