Antibiotic-resistant escherichia coli and sequence type 131 in fecal colonization in dogs in taiwan

Jenn Wei Chen, Han Hsiang Huang, Szu Min Chang, Joy Scaria, Yu Lung Chiu, Chih Ming Chen, Wen Chien Ko, Jiun Ling Wang

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Background: Most drug-resistant Escherichia coli isolates in dogs come from diseased dogs. Prior to this study, the prevalence and risk factors of fecal carriage drug-resistant E. coli and epidemic clone sequence type (ST) 131 (including subtypes) isolates in dogs were unknown. Methods: Rectal swabs were used for E. coli isolation from 299 non-infectious dogs in a veterinary teaching hospital in Taiwan. Antibiotic resistance and multiplex PCR analyses of E. coli for major STs were performed. Result: There were 43.1% cefazolin-resistant, 22.1% fluoroquinolone-resistant, and 9.4% extended-spectrum beta-lactamase-producing E. coli in our cohort. In the phylogenetic study, B2 was the predominant group (30.1%). The cefazolin-resistant group and ciprofloxacin-resistant group had greater antibiotic exposure in the last 14 days (p < 0.05). The age, sex, and dietary habits of the antibiotic-resistant and-susceptible groups were similar. In the seven isolates of ST131 in fecal colonization, the most predominant subtypes were FimH41 and FimH22. Conclusion: Recent antibiotic exposure was related to the fecal carriage of antibiotic-resistant E. coli isolates. Three major subtypes (FimH41, H22, and H30) of ST131 can thus be found in fecal carriage in dogs in Taiwan.

Original languageEnglish
Article number1439
Pages (from-to)1-9
Number of pages9
Issue number9
Publication statusPublished - 2020 Sept

All Science Journal Classification (ASJC) codes

  • Microbiology
  • Microbiology (medical)
  • Virology


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