Characterization of ESBL-producing Escherichia coli recovered from companion dogs in Tai'an, China

  • Song Li College of Basic Medicine, Taishan Medical University, Tai'an, China
  • Junhe Liu Disease Controlling Center, Veterinary Bureau of Zibo, Zhangdian, China
  • Yufa Zhou Disease Controlling Center, Veterinary Bureau of Daiyue, Tai'an, China
  • Zengmin Miao College of Life Sciences, Taishan Medical University, Tai'an, China
Keywords: ESBL, Escherichia coli, urinary samples, CTX-M-15, companion dogs

Abstract

Introduction: Animals are considered to be reservoirs of extended-spectrum beta-lactamase (ESBL)-producing bacteria, but few epidemiological data on ESBL-producing Escherichia coli urinary tract isolates in pet dogs are available in China.

Methodology: This study was conducted to describe the prevalence and characterization of ESBL producers among E. coli urinary tract isolates from pet dogs in Tai'an, China.

Results: A total of 118 E. coli were obtained from urinary samples of 80 companion dogs suffering from acute or chronic cystitis, of which three isolates from different dogs were ESBL producers. One isolate from dog A was of phylogroup A/ST410/CTX-M-15/TEM-1; one from dog B was of phylogroup B1/ST533/CTX-M-15/TEM-1; one from dog C was of phylogroup D/ST648/CTX-M-15. All ESBL producers were resistant to ampicillin, cephalexin, cefalotin, cefpodoxime, ceftiofur, enrofloxacin, marbofloxacin, and trimethoprim/sulfamethoxazole, but were susceptible to imipenem and amoxicillin/clavulanic acid. E. coli of ST533 carrying blaCTX-M-15 were first detected in pet dogs in China.

Conclusions: Collectively, the findings could expand our knowledge about the prevalence and characterization of ESBL-producing E. coli urinary tract isolates in pet dogs in China.

Author Biographies

Song Li, College of Basic Medicine, Taishan Medical University, Tai'an, China
College of Basic Medicine
Zengmin Miao, College of Life Sciences, Taishan Medical University, Tai'an, China
College of Life Sciences
Published
2017-03-31
How to Cite
1.
Li S, Liu J, Zhou Y, Miao Z (2017) Characterization of ESBL-producing Escherichia coli recovered from companion dogs in Tai’an, China. J Infect Dev Ctries 11:282-286. doi: 10.3855/jidc.8138
Section
Brief Original Articles