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提出了一个基于二维规则网格的SIS(Susceptible-Infected-Susceptible)动态疾病传播模型,并用元胞自动机方法进行计算机模拟,考查该模型中感染概率、治愈概率、人群密度及人群的流动对疾病传播的影响,结果表明,系统的稳态感染比例随感染概率和人群密度的增加而增大,随治愈概率的增加而减小,同等条件下流动人群比静止人群更容易传播疾病,根据这些研究结论最后给出了对应的疾病预防和控制措施。
A SIS (Susceptible-Infected-Susceptible) dynamic disease propagation model based on two-dimensional regular grids was proposed. The cellular automaton method was used to carry out computer simulation to investigate the infection probability, cure probability, population density and crowd flow The results show that the proportion of steady-state infection increases with the increase of infection probability and population density and decreases with the increase of cure probability. Under the same conditions, the floating population is more likely to transmit the disease than the resting population. Based on these The conclusion of the study finally gives the corresponding disease prevention and control measures.