These organisms penetrate into snails, multiply, and develop into cercariae, the infective form for man.
这些毛蚴进体螺体，繁殖和发育对人类有传染性的尾蚴。
A complete viral particle consisting of RNA or DNA surrounded by a protein shell and constituting the infective form of a virus.
病毒粒子一整个病毒粒子，由被蛋白质外壳包围的核糖核酸或脱氧核糖核酸组成，并构成一个病毒的传染形式。
A complete viral particle consisting of RNA or DNA surrounded by a protein shell and constituting the infective form of a virus.
病毒粒子一整个病毒粒子，由被蛋白质外壳包围的核糖核酸或脱氧核糖核酸组成，并构成一个病毒的传染形式。
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