OBJECTIVE To investigate the genetic background of resistance and virulence in a group of methicillinresistant Staphylococcus aureus(MRSA)and observe the genotyping depending on virulence factors and drug-resistant genes.METHODS From Jan to Dec 2010,30strains of MRSA were collected from a third-level hospital in Zhejiang province,China,and 29strains of MRSA were collected from purulent specimens obtained from patients suffering from open fracture wound,and one strain of MRSA was collected from nose swab spe...