https://www.rfa.org/mandarin/Xinwen/3-08162020104918.html 新冠病毒可能最早出现在2012年 有美国研究人员指出，被广泛认为是去年底从武汉开始蔓延的新冠病毒，可能最早起源于2012 …
Could COVID-19 Have Escaped from a Lab?
品葱用户 Desperado 评论于 2020-09-10
品葱用户 White_Vinegar 评论于 2020-09-10
品葱用户 tumas 评论于 2020-09-09
In the coming weeks, as the spring sun chased shadows across her kitchen floor, Chan stood at her counter and pounded out her paper, barely pausing to eat or sleep. It was clear that the first SARS evolved rapidly during its first three months of existence, constantly fine-tuning its ability to infect humans, and settling down only during the later stages of the epidemic. In contrast, the new virus looked a lot more like late-stage SARS. “It’s almost as if we’re missing the early phase,” Chan marveled to Zhan. Or, as she put it in their paper, as if “it was already well adapted for human transmission.”
That was a profoundly provocative line. Chan was implying that the virus was already familiar with human physiology when it had its coming-out party in Wuhan in late 2019. If so, there were three possible explanations.
Perhaps it was just staggeringly bad luck: The mutations had all occurred in an earlier host species, and just happened to be the perfect genetic arrangement for an invasion of humanity. But that made no sense. Those mutations would have been disadvantageous in the old host.
Maybe the virus had been circulating undetected in humans for months, working out the kinks, and nobody had noticed. Also unlikely. China’s health officials would not have missed it, and even if they had, they’d be able to go back now through stored samples to find the trail of earlier versions. And they weren’t coming up with anything.
That left a third possibility: The missing phase had happened in a lab, where the virus had been trained on human cells. Chan knew this was the third rail of potential explanations. At the time, conspiracy theorists were spinning bioweapon fantasies, and Chan was loath to give them any ammunition. But she also didn’t want to play politics by withholding her findings. Chan is in her early thirties, still at the start of her career, and an absolute idealist about the purity of the scientific process. Facts were facts.
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White_Vinegar** 评论于 2020-09-10
品葱用户 fb_china_today 提问于 8/9/2020 回信全文: https://www.sciencemag.org/sites/default/files/Shi Zhengli Q&A.pdf 報道: …
品葱用户 fb_china_today 提问于 9/10/2020 品葱用户 MrDemocracy 评论于 2020-09-11 必然的 養老醫療地方債三大連環炸彈已經點火了 川普現在圍而不打 封鎖經濟就是等它爆炸 一旦經濟爆炸 所有人包 …
众所周知，你国粉蛆向来是热衷于嘲笑欧美的恋童问题的，尤其是他们珍爱的e-hentai服务器被逐出西欧的时候，跳的尤其之高。鉴于我和你国粉蛆都认为指摘纸片人儿童色情有碍于创作自由，这方面就按下不表，讲讲你国在其他方面的，半公开的恋童行为。 民 …
品葱用户 fb_china_today 提问于 9/10/2020 品葱用户 pcfun 评论于 已经正式加入黑名单了吗？希望快一点 品葱用户 zmla 评论于 好像和开发核武器有关，计算机模拟核试验 品葱用户 upgraded …