耐甲氧西林金黄色葡萄球菌是医院感染的重要致病菌,近年来发病有增加趋势。该菌致病率强,所致感染治疗困难,患者病死率高,因此成为各国学者关注的热点。本文就其分离率、感染率、基因分型及耐药的分子机制方面的研究进展作了综述。 Methicillin-resistant Staphylococcus aureus is an important pathogen of nosocomial infections, and the incidence has been increasing in recent years. The bacteria prevalence rate is high, resulting in infection treatment difficult, patients with high mortality, it became the focus of scholars in various countries. This review summarizes the research progress of its isolation rate, infection rate, genotyping and molecular mechanism of drug resistance.