你上面的二点, 第一是中间宿主的发现, 这也是石正丽说的, 第二是在人群中传播多年, 这个被文章中的血清学证明不存在, 你是说

中国政府在秘密用犯人做这武肺冠状病毒生物武器的研究而泄露出来的吗?

(i) natural selection in a non-human animal host prior to zoonotic transfer, and (ii) natural selection in humans following zoonotic transfer. We also discuss whether selection during passage in culture could have given rise to the same observed features.

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