Theron A, Pointier J P, Combes C
Ann Parasitol Hum Comp. 1978 Mar-Apr;53(2):223-34.
The study of the rate of contamination of B. glabrata and the cercarial densities of S. mansoni in the chanels of Beaugendre valley (Guadeloupe, French West Indies) concentrates attention on the focalisation of the sites with high risk of contamination. This focalization of the sites of transmission is directly related to the regular deposition of human faeces. A small number of contamined people is enough to maintain high cercarial densities (230 c/1). In the chanel studied, the role of the rat in the transmission of the parasite seems less important than that of the Man. The infection of the rats during consumption of snails can be foreseen.
对博让德雷山谷（瓜德罗普岛，法属西印度群岛）渠道中光滑双脐螺的污染率和曼氏血吸虫尾蚴密度的研究，将注意力集中在高污染风险地点的集中化上。传播地点的这种集中化与人类粪便的定期排放直接相关。少数受污染的人就足以维持高尾蚴密度（230条/升）。在所研究的渠道中，大鼠在寄生虫传播中的作用似乎不如人类重要。可以预见大鼠在食用蜗牛时会受到感染。
