littlestudent
加入时间: 2012/08/11
文章: 75
经验值: 3173
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作者：littlestudent 在 驴鸣镇 发贴, 来自 http://www.hjclub.org
https://www.nature.com/articles/s41591-020-0820-9："Our analyses clearly show that SARS-CoV-2 is not a laboratory construct or a purposefully manipulated virus."
你引的这篇文章，的确提到recombination和"Background" recombination。但作者提的recombination是指人工重组么？这是原话:"The complicating factor here is that sarbeviruses, and coronaviruses more broadly, experience widespread recombination, so that distinguishing recombination that assisted virus emergence from “background” recombination events is not trivial." 我生物比较差，不懂，但觉得不是。而且觉得作者没有暗示人工重组的意思。
另外方舟子指出(https://twitter.com/fangshimin/status/1225235245831557121):"目前实验室制造的病毒都是用遗传工程技术做的嵌合体，在序列里就会留下痕迹。基因组序列都公开了，可以去查。"
关于是不是实验室泄露的，武汉病毒所当然是否认的，理由是新冠病毒的序列和他们所研究的管状病毒都不一样。这里(https://www.cidrap.umn.edu/news-perspective/2020/05/scientists-exactly-zero-evidence-covid-19-came-lab)说:"If she (Shi Zhengli, PhD, director of the Center for Emerging Infectious Diseases at the Wuhan Institute of Virology) would have published a sequence for the virus and then this pops up, then we would have known it came from the lab," Andersen said. "There's no evidence for this, but there is plenty of evidence against it."中国应该允许独立调查实验室泄露,消除这个阴谋论和公众疑虑。
上面网页还提到: Rasmussen said that the most plausible scenario is a "natural zoonotic spillover," adding that serology studies have shown that some people in China living near bat caves have antibodies against bat SARS-like coronaviruses in their blood, "suggesting that people are exposed to related viruses in the course of their daily lives, so it’s not implausible that SARS-CoV-2 emerged in humans through a chance encounter between a human and a wild bat or some other animal."
作者：littlestudent 在 驴鸣镇 发贴, 来自 http://www.hjclub.org |
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喜见习主席外交思想硕果累累（一）
