鄱阳湖区血吸虫病流行因素和流行规律的研究

STUDIES ON EPIDEMIOLOGICAL FACTORS AND REGULAR PATTERNS OF SCHISTOSOMIASIS IN BOYANG LAKE REGION

本文报导了解阳湖区连续3年血吸虫病流行因素和流行规律研究的结果,认为目前这类地区血吸虫病的疫情甚为严重,其中以洲岛型和滩型沿湖居民的感染率最高,放养猪牛的感染率亦高。主要传染源为病牛和病猪以及渔船民患者;血吸虫病易感洲滩约占洲滩总数的3/4,在不利于钉螺繁殖的水位年份钉螺和阳性螺密度剧降;20岁以下的儿童和青少年为易感人群;易感季节因地而异;认真查治能有效地控制感染率。根据上述结果,讨论了当前湖区血防的重点、策略和目标。

For exploring me epidemiological tactors and regular patterns of schistosom-iasis in Boyang Lake Region, we have collected the historical informations about the endemic areas and investigated the current prevalance of schistosomiasis at four pilot spots among the endemic areas of different patterns for three years consecutively since 1987. The infection rate and the intensity of infection of inhabitants and domestic animals in islands and on shore of the lake were very high. The main infections sources of infectien in these areas were the infectelcattle and the petients among fisherman. The susceptive places of schistosomiasis were amounted to one-fourth in the total snail infested areas. Children were the susceptiblq population and spring and autumn were highly infective seasons. According to the results of iuvestgation, the authors suggest that the stress strategy and objective of schistosomiasis control in different endemic areas of Boyang Lake Region should be the simultaneous chemotherapy of human objects and domestic animals together with snail eradication at susceptive areas.