Evaluation of a chromogenic agar under development to screen for VRE colonization

J Clin Microbiol. 2010 Mar;48(3):999-1001. doi: 10.1128/JCM.02011-09. Epub 2010 Jan 20.

Abstract

BBL CHROMagar VanRE (CVRE) was compared with bile esculin azide agar plus vancomycin to screen for vancomycin-resistant enterococcus (VRE) colonization. CVRE distinguishes Enterococcus faecalis (green colonies) from Enterococcus faecium (mauve colonies) on the basis of chromogenic substrate use. CVRE sensitivity and specificity were 98.6% and 99.1%. Positive and negative predictive values were 95.9% and 99.7%.

Publication types

  • Comparative Study
  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Agar
  • Bacteriological Techniques / methods*
  • Carrier State / diagnosis
  • Carrier State / microbiology
  • Chromogenic Compounds
  • Culture Media / chemistry*
  • Enterococcus faecalis / drug effects
  • Enterococcus faecalis / isolation & purification*
  • Enterococcus faecium / drug effects
  • Enterococcus faecium / isolation & purification*
  • Gram-Positive Bacterial Infections / diagnosis*
  • Gram-Positive Bacterial Infections / microbiology
  • Humans
  • Predictive Value of Tests
  • Sensitivity and Specificity
  • Vancomycin Resistance*

Substances

  • Chromogenic Compounds
  • Culture Media
  • Agar