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Evaluation of a New CHROMagar Medium for Detection of Methicillin-Resistant Staphylococcus aureus

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Four laboratory methods including, E-test MIC, Oxacillin screen agar, manitol salt agar plus oxacillin and CHROMagar MRSA were compared for detection of methicilin resistant Staphylococcus aureus (MRSA). CHROMagar MRSA had a high sensitivity and specificity comparing to conventional E-test method. Sensitivity and specificity by manitol salt agar was 95 and 100%, respectively, while oxacillin screening agar method had 100% sensitivity and 95% specificity.

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