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Detection of the (A) mecA, (B) norA and (C) qacA/B genes in MRSA41577 using polymerase chain reaction analysis. Lane M, marker; Lane 1, mecA; Lane 2, norA; Lane 3, qacA/B; mecA, penicillin binding protein 2; norA, quinolone resistance protein NorA; qacA/B, quaternary ammonium resistance proteins A/B; MRSA, methicillin-resistant Staphylococcus aureus.
