由mecA基因阳性,对苯唑西林敏感,具有诱导耐药性的金黄色葡萄球菌(金葡萄)引起的血流感染。1例接受气管造口术的60岁患者被寄殖的耐甲氧西林金葡菌感染出现了菌血症。应用头孢西丁纸片扩散法、苯唑西林琼脂筛选法和VITEK药敏检测系统的测试结果均显示该菌对甲氧西林敏感。但是,聚合酶链反应测试表明该细菌携带 MecA gene-positive, sensitive to oxacillin, with resistance-induced Staphylococcus aureus (gold grape) caused by bloodstream infections. A case of bacteremia was found in one of the 60-year-old patients who underwent tracheostomy, who were colonized with methicillin-resistant Staphylococcus aureus. The test results of cefoxitin disk diffusion method, oxacillin agar screening method and VITEK drug susceptibility testing system all showed that the strain was sensitive to methicillin. However, polymerase chain reaction tests showed that the bacteria were carried