Species identification and antibiotic resistance patterns of the enterococci

  • E. A. Bryce
  • S. J. V. Zemcov
  • A. M. Clarke


One hundred and forty isolates were identified using the GPI Card (Vitek Systems) and a conventional biochemical scheme. Agar dilution susceptibility testing was performed and isolates were screened for beta-lactamase production. The GPI Card was accurate in identifyingEnterococcus faecalis, but discrepant results were obtained for seven (29.1 %) of the 24non-Enterococcus faecalis isolates. Ampicillin resistance was present in 2.9 % of isolates and there were no beta-lactamase producers. There was no vancomycin resistance but 12.1 % of isolates showed high-level resistance to gentamicin.


Internal Medicine Agar Ampicillin Vancomycin Gentamicin 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH 1991

Authors and Affiliations

  • E. A. Bryce
    • 1
  • S. J. V. Zemcov
    • 2
  • A. M. Clarke
    • 2
  1. 1.Department of Pathology, Division of MicrobiologyVancouver General HospitalVancouverCanada
  2. 2.Department of Pathology, Division of MicrobiologySaint Paul's HospitalVancouverCanada

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