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任何一种传染病,在人群中发生,都必须备三个相线连接的条件,即传染源,传染途径和易感人群。这三个条件统称为传染病流行过程的三个环节。若这三个条件同时存在,并且相互作用时,就会造成传染病的发生与蔓延。相反,若其中任何一个条件不具备,或任何一个环节被切断,传染就无从谈起。 从这个原理出发,在非典流行时,在没有特效药物与疫苗的情况下,我们要打好抗非防非的战役,必须注重科学防治,从日常做起。注意个人卫生,远离传染源,切断传染途径,增强自身抵抗能力等,是预防非典疾病传染的好办法。
Any kind of infectious disease that takes place in a population must be prepared in three phases, that is, the source of infection, the route of transmission, and the susceptible population. These three conditions are collectively referred to as the three links in the epidemic of infectious diseases. If these three conditions exist at the same time and interact with each other, the occurrence and spread of infectious diseases will be caused. Conversely, if any of these conditions are not met or if any one link is cut off, contagion can not be achieved. Starting from this principle, we must lay emphasis on scientific prevention and control and start from day to day in the battle against SARS when SARS is endemic and without effective drugs and vaccines. Pay attention to personal hygiene, stay away from the source of infection, cut off the route of transmission, enhance their own resistance, etc., is a good way to prevent SARS infection.