Scientists warn that the virus could mutate into a much deadlier form.
科学家们警告，该病毒可能变异成更致命的形式。
SIV can mutate into a form that allows it to pass from human to human.
因为SIV能变异成能在人类中传播的病毒。
While it's only a single strand right now, it can mutate into other strands.
而这仅是一个单链，现在，它可以变异成其他方面。
While it's only a single strand right now, it can mutate into other strands.
而这仅是一个单链，现在，它可以变异成其他方面。
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