Multidrug resistant Escherichia coli Harboring Extendedspectrum β-Lactamase-encoding genes isolated from clinically healthy pigs

  • Khin Khin Lay
  • Haidee E. Torio
  • Asinamai Athliamai Bitrus
  • Wanida Mala
  • Nuananong Sinwat
  • Rungtip Chuanchuen
Keywords: ESBLs, Escherichia coli, MDR, Pigs, Thailand

Abstract

A total of 292 E. coli isolates obtained from fecal samples from pigs in Central (n = 103) and Northeastern (n = 189) provinces of Thailand were included in this study. Eighty-six E. coli isolates were phenotypically confirmed to be β- lactamases producers and screened for the presence of β-lactamase genes. The CTX-M family was most frequently identified (90.7%). The blaCTX-M-15 gene belonging to CTX-M group I (59.3%) was the most predominantly identified CTX-M genotype followed by blaCTX-M-14 (31.4%) and blaCTX-M-4 (25.6%). The blaTEM-1 gene was prevalent (75.6%). The blaCTX-M-4 and blaCTX-M-14 genes were located on conjugative plasmid. The results highlighted healthy pigs as reservoirs of ESBL-producing E. coli carrying ESBL genes that could be horizontally transferred.

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Published
2021-03-22
How to Cite
Lay, K. K., Torio, H. E., Bitrus, A. A., Mala, W., Sinwat, N., & Chuanchuen, R. (2021). Multidrug resistant Escherichia coli Harboring Extendedspectrum β-Lactamase-encoding genes isolated from clinically healthy pigs. he hai ournal of eterinary edicine, 51(2), 303-310. etrieved from https://he01.tci-thaijo.org/index.php/tjvm/article/view/248679
Section
Original Articles