论文部分内容阅读
传染病和非传染病之间一个最主要的区别就是传染病能够在人和人之间,动物和动物之间以及动物和人之间直接的或通过各种媒介物(水、食物、日常生活用品、媒介昆虫)互相传播。传染病的发生和蔓延,必须具备以下三个条件,即:传染源、传播疾病的媒介和存在对传染病容易感染的人。这三个条件是构成传染病流行的三个环节,只有这三个条件同时存在,传染病才能发生;如果缺少了其中任何一个环节,传染
One of the most important differences between infectious diseases and noncommunicable diseases is that infectious diseases can be transmitted directly or through various intermediaries (water, food, daily life) between humans and humans, between animals and animals, and between animals and humans Supplies, vector insects) to each other. The occurrence and spread of infectious diseases must meet the following three conditions: the source of infection, the media for the transmission of the disease and the presence of persons susceptible to infectious diseases. These three conditions constitute the three links of the epidemic of infectious diseases. Only when these three conditions coexist, can contagious diseases take place. In the absence of any of these links, contagion