【作者】 张绍基； 谢彰武； 刘志德； 胡林生； 黄飞鹏；

【Author】 Zhang Shaoji Xie Zhangwu Liu Zhide Hu Linsheng Huang Feipeng (Jiangxi Provincial Institute of Parasitic Disease)

【机构】 江西省寄生虫病研究所；

【摘要】 <正>我国当前血吸虫病防治的难点在湖区,主要原因是这类地区的钉螺分布面积大,灭螺条件限制多,短期内难以消灭。因而提出了“易感地带”灭螺及切断病源两种对策。“易感地带”与感染性钉螺的分布直接有关,了解感染性钉螺的时间分布,对治疗病人、病畜时机的选择可提供参考。作者根据1959年和1981年进贤县三里乡新和村的查螺资料,同乡更多还原

【Abstract】 The distribution of infectious snail was investigated in a total of eleven pieces of marsh- lands of Boyang Lake from 1959 to 1982.This report presents the following results:(1) Infec- tious snails distribute the grazing areas or the areas with vast moist soil,where is the most suitable for snails to breed,and the transmission of the infection at high frequencies is apt to occur.(2) According to the analysis of the data.we found that the ratio between the variation and the mean of infectious snails among four pieces of marshlands is equal to 1.7192,1.3029, 1.2414,and 3.0582.Mathematically,the distribution of infectious snails obeys the laws of ne- gative binomial and Poeya-Eggenberger.This result also showed that the infectious snails in marshland and lake region concentrate on some special places.(3) During June to July every year,a large number of old snails are exchanged in marshland,and new snails with cercarie appear in August.Since then the number of new infectious snails increase slowly until Octo- ber.(4) In endemic area of Boyang Lake.the main infectious source is cattles with Schiste- somiasis. On summarizing the data reported above,it is suggested that in endemic area of Boyang Lake snail elimination in susceptible places and treatment of main infectious source would be the strategy for Schistosomaisis control.更多还原