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Comparative Study
. 2007 Jan;56(Pt 1):43-46.
doi: 10.1099/jmm.0.46777-0.

Evaluation of mannitol salt agar, CHROMagar Staph aureus and CHROMagar MRSA for detection of meticillin-resistant Staphylococcus aureus from nasal swab specimens

Zhuolin Han  1 , Ebbing Lautenbach  2   3   1 , Neil Fishman  3   1 , Irving Nachamkin  4
Affiliations
Comparative Study

Evaluation of mannitol salt agar, CHROMagar Staph aureus and CHROMagar MRSA for detection of meticillin-resistant Staphylococcus aureus from nasal swab specimens

Zhuolin Han et al. J Med Microbiol. 2007 Jan.

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.

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