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