Objective To monitor the phenotypes of and genes responsible for antibiotic resistance of airborne methicillin-resistant Staphylococcus aureus(MRSA)in hospitals. Methods Air samples were collected by FA-1six-stage air samplers in the main lobby,ICU,and wards of five hospitals.Airborne S.aureus strains were isolated and identified from the air samples,and then the airborne MRSA strains were identified using a cefoxitin disk diffusion test.The KirbyBauer method was used to test the MRSA strains' susceptibilit...