Evaluation of the LightCycler Staphylococcus M GRADE kits on positive blood cultures that contained gram-positive cocci in clusters

J Clin Microbiol. 2005 Dec;43(12):6144-6. doi: 10.1128/JCM.43.12.6144-6146.2005.

Abstract

We evaluated the Roche LightCycler Staphylococcus M(GRADE) kits to differentiate between Staphylococcus aureus and coagulase-negative staphylococci in blood cultures growing clusters of gram-positive cocci. Testing 100 bottles (36 containing S. aureus), the assay was 100% sensitive and 98.44% specific for S. aureus and 100% sensitive and specific for coagulase-negative staphylococci.

Publication types

  • Evaluation Study

MeSH terms

  • Bacterial Typing Techniques
  • Blood / microbiology*
  • Coagulase / metabolism
  • Culture Media*
  • DNA, Bacterial / analysis
  • Gram-Positive Cocci / classification*
  • Gram-Positive Cocci / growth & development*
  • Gram-Positive Cocci / isolation & purification
  • Humans
  • Polymerase Chain Reaction / methods
  • Reagent Kits, Diagnostic*
  • Sensitivity and Specificity
  • Species Specificity
  • Staphylococcus / classification
  • Staphylococcus / enzymology
  • Staphylococcus / growth & development
  • Staphylococcus aureus / classification
  • Staphylococcus aureus / growth & development
  • Staphylococcus aureus / isolation & purification

Substances

  • Coagulase
  • Culture Media
  • DNA, Bacterial
  • Reagent Kits, Diagnostic