Yousif F, el-Emam M, el-Sayed K
Department of Medical Malacology, Theodor Bilharz Research Institute, Imbaba, Giza, Egypt.
J Egypt Soc Parasitol. 1998 Aug;28(2):559-68.
Six snail species naturally associated with Biomphalaria alexandrina, the snail host of Schistosoma mansoni in Egypt, were tested under standard laboratory conditions, for impact on miracidial host findings and infection of the snail host. These snails are the prosobranchs Melanoides tuberculata, Cleopatra bulimoides, Bellamys unicolor and Lanistes carinatus, the pulmonates Planorbis planorbis and Physa acuta. The tested snail ssp. reduced considerably the infection rate of Biomphalaria with S. mansoni especially at a ratio of 10 decoy snails to one Biomphalaria snail. The prosobranchs Melanoides, Cleopatra and Lanistes exhibited more reducing effect on Biomphalaria infection than Bellamya and the pulmonates Physa and Planorbis being 65.2%, 78.8%, 62.9%, 33.3%, 30.3% and 46.9%, respectively.
在埃及，与曼氏血吸虫的钉螺宿主亚历山大双脐螺自然共生的六种螺类，在标准实验室条件下接受了测试，以评估它们对毛蚴宿主发现及钉螺宿主感染的影响。这些螺类包括前鳃亚纲的瘤拟黑螺、埃及扁卷螺、单色丽蚌和龙骨舟螺，以及肺螺亚纲的扁卷螺和尖膀胱螺。受试螺类亚种显著降低了亚历山大双脐螺被曼氏血吸虫感染的几率，尤其是当诱饵螺与亚历山大双脐螺的比例为10:1时。前鳃亚纲的瘤拟黑螺、埃及扁卷螺和龙骨舟螺对亚历山大双脐螺感染的抑制作用比丽蚌以及肺螺亚纲的尖膀胱螺和扁卷螺更为明显，抑制率分别为65.2%、78.8%、62.9%、33.3%、30.3%和46.9%。
