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      https://www.ias.ac.in/article/fulltext/jbsc/041/03/0341-0346

    • Keywords

       

      Antibiotic resistance; ESBLs; integrin; Mossambicus tilapia

    • Abstract

       

      Oreochromis mossambicus (Peters 1852) (Tilapia) is one of the most consumed fish globally. Tilapia thrives well inenvironments polluted by urban waste, which invariably contain antibiotic-resistant bacteria and antibiotic resistance genes(ARGs). Thus, Tilapia surviving in such polluted environments may serve as a potential source for dissemination of ARGs.To investigate this, we isolated bacterial strains from gut of Tilapia found in polluted rivers and lakes near Pune, India, andstudied the prevalence of resistance genes bymolecularmethods. A total of 91 bacterial strains were obtained, which includefish pathogens and human pathogens such as Aeromonas hydrophila, Klebsiella pneumoniae, E. coli, Serratia marcescens,Enterobacter spp. and Shigella spp. Overall the prevalence of class 1 integrons, class 2 integrons, extended-spectrum betalactamases(ESBLs) bla_{CTX-M}, bla_{SHV} and aac(6')-Ib-cr gene was 38%, 24%, 38%, 31% and 31% respectively. Forty-twopercent of the Enterobacteriaceae strains carried bla_{CTX-M} gene, which is a common ESBL gene in clinics. The studydemonstrates that tilapia found in the polluted waters can serve as reservoirs and an alternative route for human exposure toclinically important ARG-carrying bacteria. The consumption and handling of these fish may pose a potential health risk.

    • Author Affiliations

       

      NACHIKET P MARATHE1 SWAPNIL S GAIKWAD1 2 ANKITA A VAISHAMPAYAN1 MANDAR H RASANE1 YOGESH S SHOUCHE1 WASUDEV N GADE2

      1. Microbial Culture Collection, National Centre for Cell Science, Pune 411 007, India
      2. Department of Biotechnology, Savitribai Phule Pune University, Pune 411 007, India
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