同一地区的嗜气管双脐螺和光滑双脐螺对两种曼氏血吸虫菌株的易感性
[Susceptibility of Biomphalaria tenagophila and Biomphalaria glabrata from a same region to 2 Schistosoma mansoni strains].
作者信息
da Silva R E, de Melo A L, Pereira L H
机构信息
Departamento de Parasitologia, UFMG, Belo Horizonte, MG, Brasil.
出版信息
Rev Inst Med Trop Sao Paulo. 1994 Sep-Oct;36(5):409-15. doi: 10.1590/s0036-46651994000500004.
B. tenagophila snails from Ouro Branco, MG, showed positivity for S. mansoni, with infection rates of 5%, 10%, (SJ strain), and 1% (LE strain) using a pool of miracidia. The mollusks were found to be susceptive from the 3rd generation reared in laboratory onwards. The B. tenagophila (OB, MG) when individually exposed to 10 miracidia, showed infection rate of 2% for LE strain. B. glabrata snails from Gagé, MG, showed a positivity rate of 58% for S. mansoni (LE strain), under experimental conditions. The B. tenagophila from Cabo Frio, RJ and B. glabrata from Belo Horizonte, MG used as a control for SJ strain showed infection rates of 47%-85% and 36% respectivily. For the LE strain, B. glabrata (BH, MG) used as control showed infection rate of 40%-75%.
来自米纳斯吉拉斯州欧鲁布兰科的嗜气管双脐螺对曼氏血吸虫呈阳性反应，使用毛蚴混合液时，感染率分别为5%、10%（SJ株）和1%（LE株）。发现这些软体动物从实验室饲养的第三代起就具有易感性。当单独暴露于10个毛蚴时，来自米纳斯吉拉斯州欧鲁布兰科的嗜气管双脐螺（LE株）的感染率为2%。在实验条件下，来自米纳斯吉拉斯州加热的光滑双脐螺对曼氏血吸虫（LE株）的阳性率为58%。来自里约热内卢卡布弗里奥的嗜气管双脐螺和来自米纳斯吉拉斯州贝洛奥里藏特的光滑双脐螺用作SJ株的对照，感染率分别为47%-85%和36%。对于LE株，用作对照的来自米纳斯吉拉斯州贝洛奥里藏特的光滑双脐螺的感染率为40%-75%。
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