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楼主 |
发表于 2020-2-2 21:43:13
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发信人: StMicheal (archangel), 信区: Military
标 题: Re: 武汉肺炎第一个病人,病毒追踪溯源到了华南海鲜市场
发信站: BBS 未名空间站 (Fri Jan 31 23:56:34 2020, 美东)
RaTG13和2019nCov在进化上分开至少25了。
跟据突变率估计,两者从共同祖先分开25-65年了。
每次出现新病毒性疾病,这种研究机构人造病毒泄露/或保存的天然病毒泄露的阴谋论就会出现。没什么新鲜的。
https://www.sciencemag.org/news/ ... -outbreak-s-origins
Mining coronavirus genomes for clues to the outbreak’s origins
By Jon CohenJan. 31, 2020 , 6:20 PM
Earlier this week, Ebright questioned the accuracy of Bedford’s calculation that there are at least 25 years of evolutionary distance between RaTG13—the virus held in the Wuhan virology institute—and 2019-nCoV, arguing that
the mutation rate may have been different as it passed through different hosts before humans. Ebright tells ScienceInsider that the 2019-nCoV data are “consistent with entry into the human population as a natural accident.”
Shi did not reply to emails from Science, but her longtime collaborator,disease ecologist Peter Daszak of the EcoHealth Alliance, dismissed Ebright's conjecture. “Every time there's an emerging disease, a new virus, the same story comes out: This is a spillover or the release of an agent or a bioengineered virus,” Daszak says. “It’s just a shame. It seems humans can’t resist controversy and these myths, yet it’s staring us right in the face. There’s this incredible diversity of viruses in wildlife and we’ve just scratched the surface. Within that diversity, there will be some that can infect people and within that group will be some that cause illness.” |
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