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Co-existence of NDM-, aminoglycoside- and fluoroquinolone-resistant genes in carbapenem-resistant Escherichia coli clinical isolates from Pakistan

Author name : Hasan Ejaz Ejaz Tariq
Publication Date : 2023-09-01
Journal Name : Future Microbiology

Abstract

Background: To determine the prevalence of antimicrobial-resistant genes in carbapenem-resistant Escherichia coli (CRECO). Methods: A total of 290 carbapenem-resistant bacteria were collected from tertiary care hospitals in Lahore (Pakistan). These isolates were confirmed by VITEK 2 and matrix-assisted laser desorption/ionization time of flight. The minimum inhibitory concentration was performed by VITEK 2. Sequence typing, resistant gene identification, DNA hybridization and replicate typing were also performed. Results: 33 out of 290 (11.3%) were CRECO and carried blaNDM; 69, 18 and 12% were NDM-1, NDM-5 and NDM-7, respectively, with 100% resistance to β-lactams and β-lactam inhibitors. ST405 and ST468 were mostly identified. NDM-ECO carried approximately 50-450 kb of plasmids and 16 (55%) were associated with IncA/C. Conclusion: NDM-1-producing E. coli are highly prevalent in clinical settings.

Keywords

Escherichia coli; MIC; MLST; NDM; plasmid profile.

Publication Link

https://doi.org/10.2217/fmb-2023-0068

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