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感染性钉螺分布、人群感染机率是确定江湖洲滩血吸虫病易感地带的主要因变量.根据各地研究资料,结合华容县1983～1986年江湖洲滩易感地带调查结果分析,制约和影响上述两个因变量的主要自变量有:灭螺情况(C)、水淹日数(F)、植物环境(E)、距堤距离(Da)、粪便(渔、船民粪便及野粪)污染(P)、洲滩地貌(L)、距居住点距离(Db)、感染方式和地点(I)等。
Infectious snail distribution and population infection probability are the main determinant variables for the susceptible zone of schistosomiasis in Jianghu Island.Based on the research data of various places and the analysis of the investigation results of the susceptible zone of Jianghuzhou Beach from 1983 to 1986 in Huarong County, The main independent variables of individual variables are: the situation of molluscum (C), flooding days (F), plant environment (E), distance to dykes (Da), faeces (fisheries, (L), distance from residential area (Db), ways of infection and location (I) and so on.