【摘要】 了解掌握血吸虫病流行区传染源的种类和感染状况，分析各宿主在传播中的作用具有重要的现实意义。本文报道１９９２～１９９５年安徽省５个江洲滩型血吸虫病流行区进行的传染源种类、分布、感染和污染状况的调查结果。结果显示本省江洲滩地区除人外共发现牛、猪、兔、羊、鼠和狗６种动物传染源。感染率分别为４３．０８％、２１．３１％、１８．１８％、１３．０４％、８．３３％和０．６９％，除狗外其它动物感染率均高于人群（７．５３％）。从各宿主ＥＰＤ和相对传播指数来看，人群所占的比例最高达９１．３％，耕牛占８．４８％，其它动物累计仅０．２％。然而，滩地实际污染调查则仅发现牛、猪和羊，污染指数牛占９９．８３％，猪占０．１７％，由此可见牛是湖沼地区最重要的传染源更多还原

【Abstract】 It has very important significance to understand the species and prevalence status of infection sources of schistosomiasis and to analyze their role in the transmission. This paper reports the species distribution, infection and contamination status of infection source of schistosomiasis in 5 endemic villages of a lake and marshland regions in Anhui Province. The reults showed that there were 7 species of infection source in the lake and marshland regions, i.e. cattle, pig, rabbit, goat ,mouse, human and dog. Their infection rate was 43.08%, 21.31%, 18.18%, 13.04%, 8.33%,7.53% and 0.69% respectively. Depending on the number of egg per day(EPD) from each specie of host, the relative index of transmission of human, cattle and all other animals was 91.3%, 8.48% and 0.2% respectively. However, the status of real contamination on marshland was quite different. Only 3 kinds of wild dung from cattle, pig and goat were found, of which 99.83% of the eggs came from cattles dung. Therefore cattle was the most important infection source in the lake and marshland regions. Meanwhile how to judge exactly the role of a specie of host in transmission of schistosomiasis was discussed in this paper.更多还原