Carter N P, Anderson R M, Wilson R A
Parasitology. 1982 Oct;85 (Pt 2):361-72. doi: 10.1017/s0031182000055335.
The relationship between infection success, the density of Schistosoma mansoni miracidia and the density of the snail host Biomphalaria glabrata was examined experimentally. Within laboratory infection arenas, the distribution of miracidial infections/snail was approximately uniform and the net rate of snail infection was directly positive binomial to miracidial density. In contrast, however, the rate of infection declined exponentially as snail density increased. Mathematical models are developed to aid in the estimation of infection rates and experimental results are discussed in the context of the transmission dynamics of schistosomiasis.
通过实验研究了曼氏血吸虫毛蚴感染成功率、毛蚴密度与中间宿主光滑双脐螺密度之间的关系。在实验室感染区域内，每只蜗牛的毛蚴感染分布大致均匀，蜗牛感染的净率与毛蚴密度呈直接正二项分布。然而，相比之下，随着蜗牛密度增加，感染率呈指数下降。建立了数学模型以辅助估计感染率，并在血吸虫病传播动力学的背景下讨论了实验结果。
