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September 10, 2025MicroorganismsOpen Access

Molecular Epidemiology of Carbapenem-Resistant P. aeruginosa and Enterobacterales Isolates from Clinical Infections and Their Susceptibility to Ceftazidime–Avibactam

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Authors

JGJose-Rita GergesSBSara BaradaHHHadi Hussein

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Overview

Phenotypic and genotypic analysis reveals resistance profiles and mechanisms in clinical isolates, indicating CAZ-AVI's effectiveness.

Key Points

  • Carbapenem resistance was identified in 100% of Klebsiella pneumoniae, 63% of Escherichia coli, and 100% of Pseudomonas aeruginosa isolates.
  • Resistance to ceftazidime–avibactam occurs in 79% of E. coli and 60% of P. aeruginosa among resistant strains.
  • The analysis utilized antimicrobial susceptibility testing and whole-genome sequencing on 30 isolates from each species.
  • Findings indicate that while CAZ-AVI is effective for many isolates, multiplicative resistance mechanisms are prevalent.

Cite This Study

Gerges et al. (2025) studied this question.

synapsesocial.com/papers/68c243f6b210217d647a8af7https://doi.org/10.3390/microorganisms13092015
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