Abstract
Mannitol salt agar (MSA), CHROMagar Staph aureus (CSA) and CHROMagar MRSA (CSA-MRSA) were evaluated with nasal surveillance specimens for their ability to detect Staphylococcus aureus and meticillin-resistant S. aureus (MRSA). CSA was found to be more sensitive than MSA in detecting S. aureus (98 versus 84.3 %; P=0.03). CSA and CSA-MRSA were equivalent in the ability to detect MRSA at 24 h (89.7 versus 87.2 %) and at 48 h (94.9 versus 94.9 %). When combined with Staphaurex slide confirmation testing, both CSA and CSA-MRSA were highly specific (100 %) media for detecting MRSA from nasal swab specimens.
Publication types
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Comparative Study
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Evaluation Study
MeSH terms
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Agar
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Anti-Bacterial Agents / chemistry
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Anti-Bacterial Agents / pharmacology
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Cefoxitin / chemistry
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Cefoxitin / pharmacology
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Chromogenic Compounds / chemistry
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Culture Media / chemistry
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Humans
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Mannitol / chemistry
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Methicillin / chemistry
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Methicillin / pharmacology
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Methicillin Resistance*
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Microbial Sensitivity Tests / methods
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Nasal Mucosa / microbiology*
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Species Specificity
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Staphylococcal Infections / diagnosis*
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Staphylococcal Infections / microbiology
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Staphylococcus / drug effects
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Staphylococcus / growth & development
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Staphylococcus / isolation & purification
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Staphylococcus aureus / drug effects
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Staphylococcus aureus / growth & development
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Staphylococcus aureus / isolation & purification*
Substances
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Anti-Bacterial Agents
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Chromogenic Compounds
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Culture Media
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Mannitol
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Cefoxitin
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Agar
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Methicillin