这个冠状病毒还是原来病毒,不可能在短短几周几个月内变异。所谓不同株系,是指不改变蛋白和调控区域的碱基区别(最简单说法)
本帖于 2020-03-19 13:07:12 时间, 由普通用户 评论2012 编辑
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