Performance of MRSA ID, a New Chromogenic Medium for Detection of Methicillin-Resistant Staphylococcus aureus

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Abstract
MRSA ID was evaluated for its ability to identify methicillin-resistant Staphylococcus aureus . A well-defined collection of staphylococci was used ( n = 998). The sensitivity after 24 h was 96.4%, increasing to 98.8% after 48 h. The specificity was 98.2% after 24 h and decreased to 89.7% after 48 h.