de Souza C P, Passos L K, Carvalho O dos S
Centro de Pesquisas René Rachou, FIOCRUZ, Belo Horizonte, MG, Brasil.
Mem Inst Oswaldo Cruz. 1988 Oct-Dec;83(4):447-50. doi: 10.1590/s0074-02761988000400009.
The descendants of the planorbid snail Biomphalaria peregrina, collected in the region of Santa Rita do Sapucaí, Minas Gerais, Brazil, were exposed to miracidia of three strains of Schistosoma mansoni: "LE" strain from Belo Horizonte, State of Minas Gerais; "SJ", strain from São José dos Campos, State of São Paulo and "AL" strain from State of Alagoas. Of 300 snails exposed to miracidia of the three strains, none was infected. On the other hand, 300 Biomphalaria glabrata of the control groups showed infection rates of 61.1 to 95.3% with the three strains. The mortality rates of B. peregrina and B. glabrata were 20% and 28%, respectively.
在巴西米纳斯吉拉斯州圣丽塔杜萨普卡伊地区采集的扁卷螺Biomphalaria peregrina的后代，被暴露于三种曼氏血吸虫株的尾蚴中：来自米纳斯吉拉斯州贝洛奥里藏特的“LE”株；来自圣保罗州圣若泽杜斯坎普斯的“SJ”株和来自阿拉戈斯州的“AL”株。在暴露于这三种株尾蚴的300只蜗牛中，没有一只被感染。另一方面，对照组的300只光滑双脐螺对这三种株的感染率为61.1%至95.3%。Biomphalaria peregrina和光滑双脐螺的死亡率分别为20%和28%。
