Dreyfuss G, Moukrim A, Rondelaud D, Vareille-Morel C
Faculté de Pharmacie, Laboratoire de Parasitologie, Limoges, France.
J Helminthol. 1994 Jun;68(2):115-8. doi: 10.1017/s0022149x00013626.
Fasciola hepatica miracidia were experimentally introduced into five sites colonized by Lymnaea palustris over a period of 4 or 6 years. In the first four ponds, a progressive increase in the prevalence of the spring-generation juvenile snails was observed (from 0.4 to 18.1%), with a corresponding increase in the shell height of infected snails (from 3.6 to 7.8 mm). In the fifth habitat, the pond dried in 1990 causing the prevalence to drop as compared with the initial values and to subsequently increase in 1991-1992.
肝片吸虫毛蚴在4至6年的时间里被实验性地引入到五个由静水椎实螺栖息的地点。在前四个池塘中，观察到春季一代幼螺的感染率逐渐上升（从0.4%升至18.1%），受感染螺的壳高也相应增加（从3.6毫米增至7.8毫米）。在第五个栖息地，该池塘于1990年干涸，导致感染率相较于初始值下降，并在1991 - 1992年随后上升。
