但是让人感到恐惧的是，H5N1可以与更容易对人类造成感染的流感病毒交换基因片段(重组)而得到进化。
One fear, however, is that H5N1 might become better at infecting humans by swapping genetic parts (reassortment) with types of flu virus that already infect humans easily.
但是让人感到恐惧的是，H5N1可以与更容易对人类造成感染的流感病毒交换基因片段(重组)而得到进化。
One fear, however, is that H5N1 might become better at infecting humans by swapping genetic parts (reassortment) with types of flu virus that already infect humans easily.
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