论文部分内容阅读
通过对湖滩地区日本血吸虫病传播过程的研究,在两阶段催化模型的基础上,建立了湖滩地区日本血吸虫病的传播模型。根据大规模的流行病学调查资料,估计传播模型的各个参数;发现日本血吸虫感染的阴转速率约为025,同时对不同类型人群的各个参数(β1、β2)进行估计,这些参数决定着传染源、钉螺等因素对传播所起作用的大小;并用南矶山(鄱阳湖区)和新尚村(洞庭湖区)实际观察资料对模型的有效性进行了验证。该模型对湖滩地区各种不同的控制策略进行了系统分析,以从理论上寻找优化的综合防治措施。
Based on the study of schistosomiasis transmission in Lake Area, the transmission model of Schistosoma japonicum in Lake Area was established based on the two-stage catalytic model. According to the large-scale epidemiological survey data, the various parameters of the transmission model were estimated. It was found that the negative conversion rate of Schistosoma japonicum infection was about 0.25, and the parameters (β1 and β2) of different types of people were also estimated. These parameters Infection sources, snails and other factors on the size of the role of transmission; and the validity of the model verified by the actual observation data of the Nanji Mountain (Poyang Lake area) and the new Shangcun (Dongting Lake area). The model systematically analyzes various control strategies in Hu Tan area so as to theoretically seek optimized comprehensive control measures.