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[This article belongs to Volume - 57, Issue - 05]

Abstract : The objective of this study is to provide an update of the current prevalence of antibiotic resistant enterobacteria strains isolated from different ecological niches. A total of 103 samples were taken from different ecological niches. These samples were collected randomly, from different stores (farms, zoo, chicken coop…) during the period from 13 February to 3rd March 2023. After the isolation and identification of the enterobacteria strains, the sensitivity of the strains to antibiotics was determined by agar diffusion method. The production of Extended Spectrum β-lactamase was detected by the synergy test (DD-test) and the production of carbapenemase was determined by the Hodge test. A total of 18 strains of Enterobacteriaceae resistant to different antibiotics were found with a prevalence of 17.4%, including 3.8% carbapenemase (CPE) producers and 4.8% Extended Spectrum β-lactamase producers. Escherichia coli species was dominant with a prevalence of 56% of isolated bacteria. This study suggests a global dissemination of carbapenemase-producing or extended-spectrum β-lactamase-producing antibiotic-resistant Enterobacteriaceae as resistance mechanisms in different niches, mainly due to the excessive use of antibiotics in the environment.