近三十年来,我国在血吸虫病防治与科研工作上取得很大的成绩,在山丘型血吸虫病流行地区(以下简称病区),调查、防治与科研也做了大量工作,这对推动各个时期的血防工作,起了很大的作用。但是在山丘型地区,长期以来,出现的钉螺分布区,有的已全部成为病区,有的部分成为病区,有的全部仍为非病区,形成这三种情况的原因迄今尚缺少研究,特别是与防治策略有关的问题(如病区的结构、形成与发展的规律等有关基础理论的研究)目前还是一项空白。为了弄清以上问题,作者通过长期的 In the past three decades, great achievements have been made in the prevention and treatment of schistosomiasis in our country. A great deal of work has also been done in the endemic areas of schistosomiasis (hereinafter referred to as ward), investigation, prevention and research, Period of blood work, played a big role. However, in the hill-type area, for a long time, snail distribution areas that have emerged have all become wards, some of them become wards, and some of them are still non-wards. The reasons for the formation of these three kinds of conditions have so far been lacking Research, especially the issues related to prevention and control strategies (such as the research on the basic theory of ward structure, formation and development, etc.) is still a blank. In order to clarify the above problems, the author adopted long-term