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为了找出江苏省现阶段江滩地区血吸虫病主要传染源，为防治对策的制定和实施提供依据。本研究采用现场流行病学调查的方法，对4个沿江村和2个江心洲的耕牛感染情况、居民感染情况及所辖江滩的污染等进行了连续5年的观察。结果：6个村（洲）耕牛血吸虫病感染率在2．68％－15.25％之间，平均为8．23％；居民感染率在0％-5．37％之间，平均为2.65％;耕牛感染率随着江滩高程的下降呈明显下降趋势（r＝0．9000，P＜0．05）;滩地污染牛粪占85．15％，新鲜野牛粪阳性率为3．05％，EPG几何均值为2．9；耕牛感染率与居民感染率非常相关（r＝0．9892，P＜0．01），人群和牛群EPD分别占总EPD的76．71％和23．29％，耕牛排出的虫卵有45．35％直接进入江滩。结果表明江苏省现阶段血吸虫病流行，长江上游软下游严重，耕牛在血吸虫病的流行中起着主导作用。结果提示江苏省现阶段血吸虫病防治的重点首先应放在长江的上游，并加强对耕牛的化疗和管理，防止血吸虫病疫情向长江的下游和内陆地区扩散。
In order to find out the main source of schistosomiasis in Jiangtan area of Jiangsu Province at this stage, provide the basis for the formulation and implementation of control strategies. In this study, field epidemiological survey methods were used to investigate the status of cattle in four villages along the Yangtze River and two river banks, the infection of residents and the pollution of river banks under the jurisdiction. Results: The prevalence of schistosomiasis in cattle in 6 villages was between 2.68% and 15.25%, with an average of 8.23%. The infection rate among residents was between 0% and 5.37%, with an average of 2.65% ; The infection rate of cattle decreased significantly with the elevation of riverbank (r = 0.9000, P <0.05); the positive rate of fresh bovine dung was 3.05% , And the geometric mean of EPG was 2.9. The infection rate of cattle was closely related to the infection rate of residents (r = 0.9892, P <0.01), EPD of population and herd accounted for 76.71% and 23.29 %, 45.35% of cattle released eggs directly into the river beach. The results show that schistosomiasis prevalence in Jiangsu Province at this stage, the upper reaches of the soft upper reaches of the serious, cattle play a leading role in the prevalence of schistosomiasis. The results suggest that the focus of prevention and treatment of schistosomiasis at the present stage of Jiangsu Province should first be placed on the upper reaches of the Yangtze River and chemotherapy and management of cattle should be strengthened so as to prevent the spread of schistosomiasis to the downstream and inland areas of the Yangtze River.