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

Author:

Qamar Muhammad Usman1ORCID,Ejaz Hasan2ORCID,Mohsin Mashkoor3,Hadjadj Linda4,Karadeniz Aylin4,Rolain Jean-Marc4,Saleem Zikria5ORCID,Diene Seydina M4

Affiliation:

1. Institute of Microbiology, Faculty of Life Sciences, Government College University Faisalabad, 38000, Pakistan

2. Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Saudi Arabia

3. Institute of Microbiology, University of Agriculture, Faisalabad, 38000, Pakistan

4. Aix Marseille Univ, IRD, APHM, MEPHI, IHU-Méditerranée Infection, Faculté de Pharmacie, Marseille, France

5. Department of Pharmacy Practice, Faculty of Pharmacy, Bahauddin Zakariya University, Multan, 60800, Pakistan

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.

Publisher

Future Medicine Ltd

Subject

Microbiology (medical),Microbiology

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