抗体只对还没有侵入细胞的病毒起作用。外来抗体的寿命很有限,在病毒侵入人体后但入侵细胞前的短时间内注射才可能有些用。
本帖于 2020-05-16 10:38:02 时间, 由普通用户 uptrend 编辑
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