豪口村属洞庭湖区洲垸亚型重疫区.全村1243人,沿4500m长防洪大堤内侧200m内居住。垸外有易感地带86.7万m~2,与堤线平行,受上游有螺水流影响;传染源为本地人畜,以耕牛及猪为主。 该村1984年前采用综合性防治措施,疫情处于徘徊状态。1985～1987年,在流行病学基线调查的基础上,采用吡喹酮大面积治疗人、畜,3年共治疗病源 Houpou Village belongs to the embankment sub-type epidemic area of ​​Dongting Lake. The village has 1243 people living within 200m of the 4500m flood control embankment. Exotic embankment with a susceptible zone 867,000 m ~ 2, parallel with the embankment line, affected by upstream spiral flow; source of infection for local people and livestock, mainly cattle and pigs. The village before 1984 using a comprehensive prevention and control measures, the epidemic is at a hovering state. From 1985 to 1987, on the basis of the epidemiological baseline survey, a large area of ​​praziquantel was used to treat human and livestock, and three years of treatment were combined