Variable performance of four commercial chromogenic media for detection of methicillin-resistant Staphylococcus aureus isolates harbouring mecC

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Dupieux, Céline | Kolenda, Camille | Larsen, Anders Rhod | Pichon, Bruno | Holmes, Mark | Bes, Michèle | Teale, Christopher | Dickson, Elizabeth | Hill, Robert | Skov, Robert | Kearns, Angela | Laurent, Frédéric

Edité par CCSD ; Elsevier -

International audience. In this study, the performances of four methicillin-resistant Staphylococcus aureus (MRSA) chromogenic screening media were compared for detecting mecC-positive MRSA. Using 111 clinical isolates representative of the various mecC-MRSA clones in Europe, chromID\textregistered MRSA (bioMérieux) and BrillianceTM MRSA 2 (Oxoid Ltd.) showed higher sensitivity (99.1% and 97.3%, respectively) than BBLTM CHROMagar\textregistered MRSA II (BD Diagnostics) and MRSASelectTM (Bio-Rad) (79.3% and 63.1%, respectively) (P \textless0.0001). These findings have important implications for effective public health diagnostics and epidemiological surveillance of MRSA.

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