Scientists have now discovered that these viruses have integrated themselves into the DNA of a wide range of animals, including humans, zebrafish, and other vertebrates.
科学家如今发现这些病毒已将自身整合成大多动物的DNA，其中这些动物包括人类、斑马鱼以及另外的脊椎动物。
These systemic viruses can harm the body in a variety of ways, including traveling through the bloodstream and damaging tissues throughout the body.
这两种全身的病毒能够通过许多不同的途径对机体造成损伤，包括随着血流散播并损伤全身的组织。
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