【摘要】 １９８９－１９９０年，在汉阳县军山镇黄石、川江、小军３个实验点调查。结果表明，居民粪检阳性率分别为５５．１％、４９．５％、４４．３％；ＥＰＧ分别为５．６、５．２、２．０；其相对传播指数（ＲＴＩ）为７．１１；各年龄组污染指数（ＩＰＣ）以３０－３９岁年龄组最高（７９．１），相对ＩＰＣ也以３０－３９岁年龄组最高，２０－４９岁相对ＩＰＣ为６７．２％，为人群主要传染源年龄组。动物宿主牛、猪、犬感染率分别为３５．７％、６０．０％、７５．０％；ＭＰＧ分别为０．４、０．４、８０．４；ＲＴＩ分别为３８．６％、７．７％、４６．６％。黄石点猪、犬的感染率较高，川江点牛的感染率较高。此次调查证明犬作为动物宿主具有重要的流行病学意义，并表明在有螺河滩，水牛、牲猪放养，可造成严重感染。更多还原

【Abstract】 From 1989 to 1990,an investigation was conducted in three villages in Junsan township,Hanyang County,Hubei Province.The results showed that the infection rates of local residents were 55.1%,49.5%and 44.3%,respectively;the EPG were 5.6,5.2 and 2.0,respectively;the relative transmission index(RTI)were 7.1%,being highest in the age group 30-39 years.The relative index of potential contamination(IPC)was 67.2% in the age group 20-49 years,this group was considered as the main transmission source in the population.In animal hosts buffaloes,pigs and dogs,the infection rates were 35.7%,60.0% and 75.0%,respectively;MPG(miracidium per gram),0.4,0.4 and 80.4,respectively;RTI(relative transmission index),38.6%,7.7 and 46.6%,respectively.The infection rates of pigs and dogs were high in Huangshi village,while the infection rate of buffaloes was high in Chuangjiang village. These results coincided with the transmission of schistosomiasis in these villages.The results showed that dogs as the main transmission sources had important significance in the epidemiology of schistosmiasis and that buffaloes and pigs herd and fed in the snail habitats could be heavily infected.更多还原