耐甲氧西林金黄色葡萄球菌(methicillinresistant staphylococcus aureus,MRSA)是金黄色葡萄球菌(Staphylococcus Aureus,SA)的一种耐药形式。SA主要定植在人皮肤表面,也存在于约三分一的健康人群的鼻前庭。他能引起各种感染,从轻微的皮肤感染到术后伤口感染、以及严重的肺炎和败血症等。青霉素应用以后,金葡菌感染死亡率迅速下降。但随着青霉素的广泛应用,金黄色葡萄球菌的耐药 Methicillin resistant staphylococcus aureus (MRSA) is a resistant form of Staphylococcus Aureus (SA). SA colonizes primarily on the human skin surface and also exists in the nasal vestibule of about one-third of healthy people. He can cause a variety of infections, from mild skin infections to postoperative wound infections, as well as severe pneumonia and sepsis. After the application of penicillin, the mortality rate of S. aureus infection decreased rapidly. However, with the widespread use of penicillin, Staphylococcus aureus is resistant