目前,全世界各科住院病人的院内感染率均有上升。各种病因的医院感染明显降低了医疗效果,使病死率上升,造成巨大经济损失。所谓院内感染是指病人在滞留于医疗机构时,因直接传染而发生的疾病,它既能出现于住院期间,也可罹患于出院之后。目前,在预防院内感染的各种观点中,以 At present, inpatient rates of all inpatient departments across the world have increased. Nosocomial infections of various causes have significantly reduced the medical effect, resulting in an increased mortality rate and a huge economic loss. The so-called nosocomial infection refers to the disease that occurs when a patient is staying in a medical institution because of a direct infection. It can occur both during hospitalization and after discharge. At present, in the prevention of nosocomial infections in various viewpoints