一医院内病原微生物的种类在自然界中,肉眼难以观察到的微小生物称为微生物,其中大多数对人类有益,称为非病原微生物;少数对人类有害,能引起疾病,称为病原微生物,种类多,繁殖快.适应性强,分布很广。主要可分为以下几类,见表1。表中,P——“常规”致病菌,对缺乏特异性免疫力的健康人引起疾病,常是医院内引起感染爆发的 A hospital pathogenic microorganisms in nature, the naked eye is difficult to observe the micro-organisms known as micro-organisms, most of them beneficial to humans, known as non-pathogenic microorganisms; a few harmful to humans, can cause disease, called pathogenic microorganisms, species More, multiply fast. Adaptability, distribution is very wide. Can be divided into the following categories, see Table 1. In the table, P - “conventional” pathogens, diseases caused by the lack of specific immunity of healthy people, often caused by the outbreak in the hospital