洞庭湖地区日本血吸虫病的流行病学调查研究

目的了解洞庭湖地区血吸虫病流行状况，为当地血吸虫病防治提供科学依据。方法选择竹莲乡、黄茅洲两个地区，进行人畜病情、螺情及易感地带粪污染情况进行连续3年纵向观察。结果竹莲乡和黄茅洲人群和耕牛群的血吸虫平均感染率分别为11．47％和6．48％、17．99％和9．3％，各年感染率差异不显，显示两地区均属中度和高度血吸虫病流行区。结论洞庭湖血吸虫疫情有发展之趋势，其主要的传染源人和牛血吸虫的感染率仍处于较高的水平，应及时采取综合防治措施。

Epidemiological investigation of prevalence of schistosomiasis in areas around Dongting Lake.

Objective To understand the prevalence of schistosomiasis around Dongting Lake area and provide scientific basis for making prevention and control measures. Methods The townships of Zhulian, Huangmaozhou were chosen for carrying out the investigation and the infectious status of inhabitants, infection rate of snails and contamination of susceptible areas with night soils were observed for three years. Results The average infection rates of human and cattle in Zhulian Township and Huangmaozhou Township were 11.47% and 6.48%, and 17.44% and 9.30%, respectively, and there were no significant differences among different years. Conclusion The infection of schistosomiasis in Dongting Lake area tend to increase, the infection rate in human and cattle sources of infection is relatively high and integrated measures be taken.