Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Phylogenetically Diverse Escherichia Coli Strains From Chicken Co-Harbour Multiple Carbapenemase Encoding Genes (blaNDM-blaOXA-blaIMP)

Version 1 : Received: 30 October 2020 / Approved: 2 November 2020 / Online: 2 November 2020 (17:14:31 CET)

How to cite: Aklilu, E.; Harun, A.; Banga Singh, K.K.; Ibrahim, S.; Kamaruzzaman, N.F. Phylogenetically Diverse Escherichia Coli Strains From Chicken Co-Harbour Multiple Carbapenemase Encoding Genes (blaNDM-blaOXA-blaIMP). Preprints 2020, 2020110065 (doi: 10.20944/preprints202011.0065.v1). Aklilu, E.; Harun, A.; Banga Singh, K.K.; Ibrahim, S.; Kamaruzzaman, N.F. Phylogenetically Diverse Escherichia Coli Strains From Chicken Co-Harbour Multiple Carbapenemase Encoding Genes (blaNDM-blaOXA-blaIMP). Preprints 2020, 2020110065 (doi: 10.20944/preprints202011.0065.v1).

Abstract

Carbapenem resistant Enterobacteriaceae (CRE) has been public health risk in several countries and recent reports indicate the emergence of CRE in food animals. This study was conducted to investigate the occurrence, resistance patterns, and phylogenetic diversity of CRE E.coli from chicken. Routine bacteriology, PCR detection of E.coli species, multiplex PCR to detect carbapenemase encoding genes and phylogeny of CRE E. coli were conducted. The results show that 24.36 % (19/78) were identified as CRE based on the phenotypic identifications of which 17 were positive for the tested carabanemase genes. The majority, 57.99% (11/19) of the isolates harbored multiple carbapenemase genes. Four isolates harbored all blaNDM blaOXA, blaIMP, five and two different isolates harbored blaNDM and blaOXA, and blaOXA and blaIMP respectively. The Meropenem, Imipenem and Ertapenem MIC values for the isolates ranged from 2g/mL to ≥256g/mL. Phylogenetic grouping showed that the CRE E.coli isolates belonged to five different groups; groups A, B1, C, D and unknown. The detection of carbapenem resistant E.coli in this study shows that CRE is has become an emerging problem in farm animals, particularly, in poultry farms. This also implies the potential public health risks posed by CRE from chicken to the consumers.

Subject Areas

Carbapenem resistant Enterobacteriaceae (CRE); E.coli; Antimicrobial Resistance; Multidrug resistance; Phylogenetic diversity; chicken; food animals; Antimicrobials

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