Zhang S, Liu Z, Li G, Zhong J, Cheng Y
Jiangxi Provincial Institute of Parasitic Diseases.
Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi. 1990;8(1):8-12.
To understand the situation of snail distribution and to explore the criteria of susceptible zones of schisosomiasis in endemic areas around Poyang Lake, a total of 1,222,910 mu of marshland in lake regions were surveyed for three years from 1982 through 1984 by 400 skillful observers. This article reports the relation between mean density of infected snails and incidence of acute schistosomiasis in marshland. We divided all susceptible marshlands of Poyang Lake area into three types, and found that about one fourth of the area belongs to the first type of susceptible zones, i.e., with high risk to schistosomiasis infection. Longitudinal observation showed that the types of susceptible zones changed very little unless measures of schistosomiasis control were taken. The results of field study suggested that we should put stress of schistosomiasis control on the first type of susceptible marshlands of Poyang Lake in future.
为了解鄱阳湖周边血吸虫病流行区钉螺分布情况，探索易感地带划分标准，1982年至1984年，由400名技术熟练的观测人员对湖区122.291万亩滩地进行了为期三年的调查。本文报告了滩地感染性钉螺平均密度与急性血吸虫病发病率之间的关系。我们将鄱阳湖地区所有易感滩地分为三种类型，发现约四分之一的区域属于第一类易感地带，即血吸虫病感染高危区。纵向观察表明，除非采取血吸虫病防治措施，易感地带类型变化很小。现场研究结果表明，今后应将血吸虫病防治重点放在鄱阳湖第一类易感滩地上。
