Species identification and antibiotic resistance patterns of the enterococci

Eur J Clin Microbiol Infect Dis. 1991 Sep;10(9):745-7. doi: 10.1007/BF01972500.

Abstract

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 identifying Enterococcus faecalis, but discrepant results were obtained for seven (29.1%) of the 24 non-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.

Publication types

  • Comparative Study

MeSH terms

  • Ampicillin Resistance
  • Colony Count, Microbial
  • Drug Resistance, Microbial*
  • Enterococcus / classification
  • Enterococcus / enzymology
  • Enterococcus / isolation & purification*
  • Enterococcus faecalis / classification
  • Enterococcus faecalis / enzymology
  • Enterococcus faecalis / isolation & purification
  • Enterococcus faecium / classification
  • Enterococcus faecium / enzymology
  • Enterococcus faecium / isolation & purification
  • Humans
  • Microbial Sensitivity Tests
  • Species Specificity
  • beta-Lactamases / analysis

Substances

  • beta-Lactamases