我国医院内感染发生率为8.4％,造成医院内感染的因素主要来自外源性和内源性,医院工作人员鼻腔内携带的致病和条件致病菌就是一个外源性的造成医院内感染的重要因素,消除其带菌状态是预防医院內感染的一项重要措施。使用抗生素很难达到上述目 The incidence of nosocomial infections in our country was 8.4%. The main factors that caused nosocomial infections were exogenous and endogenous. Pathogenic and pathogenic bacteria carried in the nasal cavity of hospital staff were an exogenous cause of nosocomial infection An important factor to eliminate the carriage status is to prevent hospital infection is an important measure. The use of antibiotics is difficult to achieve the above objectives