论文部分内容阅读
疾病的传播过程可被数学方程所描述。人们通过一系列的演算和推理来寻求疾病流行过程的数量规律,尤其是一种疾病在人群中的流行现象,不能通过试验而重复,这给流行规律的研究带来极大的困难。但是,在已积累的大量资料的基础上,应用数学方法,建立关于疾病流行的重要因素及其数量关系的数学模型,便可复制出一定条件下疾病流行的主要特征。这不仅便于科研和教学,而且便于对某种预防措施的效果作出予
The spread of the disease can be described by mathematical equations. People through a series of calculus and reasoning to find the quantitative laws of the epidemic, especially the prevalence of a disease in the crowd, can not be repeated by trial, which brings great difficulties to the study of epidemic law. However, on the basis of a large amount of accumulated data, mathematical models are established to establish the mathematical models of the important factors of the epidemic and the quantitative relationship between them. Copying out the main features of the epidemic under certain conditions. This not only facilitates research and teaching, but also facilitates the effect of a preventive measure