由于长期的演化和适应,寄生蠕虫所依附的寄主种类已甚为稳定,其中有些蠕虫只能寄生于人体,在其他动物体内不能寄生;而某些寄生蠕虫不仅寄生于人体,也可以寄生于家畜或野生哺乳动物成为人畜共患的寄生蠕虫。家畜或野生哺乳动物,就起着某些蠕虫病的传染源作用(人体寄生蠕虫的动物源)。寄生蠕虫的动物源是一种常见的现象,随着人类开发自 Due to the long-term evolution and adaptation, the host species to which the parasitic worms attach has been quite stable. Some of these worms can only parasitize human beings and can not parasitize other animals. Some parasitic worms not only parasitize human beings but also parasitize livestock Or wild mammals become zoonotic parasitic worms. Livestock or wild mammals act as the source of infection for certain helminthiasis (the source of human parasitic worms). Animal sources of parasitic worms are a common phenomenon that humans develop since