Analysis of Ribosome Genotyping and Antimicrobial Resistance in Enterococcus faecalis Isolated from Pigs and Chickens |
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| Authors: | QIAN Xiao-lu SHANG Jun TIAN Kai ZHANG Hao-ran |
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| Institution: | Shanghai Institute for Veterinary Drug & Feeds Control, Shanghai 201103, China |
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| Abstract: | This study was to investigate the ribosome genotyping and antimicrobial resistance in Enterococcus faecalis strains isolated from 2 large-scale farms in Shanghai.40 isolates were evaluated for their sensitivity to 12 antimicrobial agents by broth microdilution,and the ribosome genotyping (ribotype) was characterized by the Riboprinter® Microbial Characterization System.The resistance rates of most antimicrobial drug were relatively high and multidrug resistant strains were detected with more than 80%.4 strains of Enterococcus faecalis isolated from pigs were resistant to vancomycin,including 2 strains of vancomycin highly resistant (MIC>64 mg/L) with the same time highly resistant to gentamicin and streptomycin (MIC>2 048 mg/L).The results showed that multidrug resistance of Enterococcus faecalis was a serious issue,and the resistant phenotypes of the same type of ribotype was not entirely consistent. |
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| Keywords: | Enterococcus faecalis antimicrobial resistance ribosome genotyping antimicrobial susceptibility test |
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