医院内感染是指病人在住院期间发生的感染,(可以在住院期间出现症状,也可能在出院后出现症状。)以及医院内工作人员在工作过程中发生的感染。据统计,住院病人中有5～10％在医院内发生感染,这使许多住院病人付出巨大痛苦和代价。近年来,医院内感染问题越来越突出,已引起世界各国卫生部门的关注。引起医院内感染的原因极为复杂,细菌种类繁多,传播方式各异,感染部位也不同。但近20年来 Infection in the hospital refers to an infection that occurs during hospitalization (either during hospitalization or as a symptom after discharge from hospital) and during hospital work. According to statistics, 5% to 10% of hospitalized patients are infected in the hospital, which makes many hospitalized patients suffer huge costs and costs. In recent years, the problem of infection in hospitals has become more and more prominent, which has aroused the concern of the health departments in all countries in the world. The causes of nosocomial infections are extremely complex, with a wide variety of bacteria, different modes of transmission, and different sites of infection. But in the past 20 years