Sellin B, Simonkovich E, Roux J
Med Trop (Mars). 1980 Jan-Feb;40(1):31-9.
During 18 surveys carried out in 29 regions of 6 West african countries (Benin, Ivory Coast, Upper Volta, Mali, Niger and Togo), one species of Biomphalaria (Biomphalaria pfeifferi) and six species of Bulinus (Bulinus truncatus rohlfsi, B. globosus, B. jousseaumei, B. umbilicatus, B. senegalensis and B. forskalii) were collected. First indications of the distribution of these species demonstrated: the presence of 3 principal species (B. pfeifferi, B. globosus and B. truncatus rohlfsi); the absence of B. pfeifferi, above latitude 14 degrees north; the presence of a zone of B. truncatus rohlfsi in the north, a zone of B. globosus in the south and an intermediate zone where these two species are sympatrie; the possible presence of two strains of Schistosoma haematobium, each being transmitted by only one of the two preceding intermediate hosts. The authors point out that the parasitic diseases and their intermediate hosts are extending, as a result of the various hydraulic works and insist that the authorities should be duly made aware of the health problems generated by any development project.
在对西非6个国家（贝宁、象牙海岸、上沃尔特、马里、尼日尔和多哥）的29个地区进行的18次调查中，采集到了一种双脐螺属（费氏双脐螺）和六种小泡螺属（罗氏截形小泡螺、球形小泡螺、朱塞姆小泡螺、脐状小泡螺、塞内加尔小泡螺和福氏小泡螺）。这些物种分布的初步迹象表明：存在3种主要物种（费氏双脐螺、球形小泡螺和罗氏截形小泡螺）；北纬14度以上没有费氏双脐螺；北部有罗氏截形小泡螺分布区，南部有球形小泡螺分布区，以及这两个物种同域分布的中间区域；可能存在两种埃及血吸虫菌株，每种仅由上述两种中间宿主之一传播。作者指出，由于各种水利工程，寄生虫病及其中间宿主正在蔓延，并坚持应让当局充分认识到任何发展项目所产生的健康问题。
