news: A new coronavirus variant is seen spreading across Europe

f
fuz
楼主 (文学城)

https://www.cnbc.com/2020/10/29/coronavirus-variant-seen-spreading-across-europe-research-says.html


KEY POINTS

A new variant of the coronavirus, identified as 20A.EU1 by researchers from Switzerland and Spain, was first observed in Spain in June.
It has been recorded in Spain at frequencies of above 40% since July, the study said.
Elsewhere, the new variant of the coronavirus has increased from “very low” values prior to July 15 to 40% to 70% in Switzerland, Ireland, and the U.K. in September.
It was also found to be prevalent in Norway, Latvia, the Netherlands, and France.

 

 

The paper to be reviewed

https://www.medrxiv.org/content/10.1101/2020.10.25.20219063v1#disqus_thread

Abstract

A variant of SARS-CoV-2 emerged in early summer 2020, presumably in Spain, and has since spread to multiple European countries. The variant was first observed in Spain in June and has been at frequencies above 40% since July. Outside of Spain, the frequency of this variant has increased from very low values prior to 15th July to 40-70% in Switzerland, Ireland, and the United Kingdom in September. It is also prevalent in Norway, Latvia, the Netherlands, and France. Little can be said about other European countries because few recent sequences are available. Sequences in this cluster (20A.EU1) differ from ancestral sequences at 6 or more positions, including the mutation A222V in the spike protein and A220V in the nucleoprotein. We show that this variant was exported from Spain to other European countries multiple times and that much of the diversity of this cluster in Spain is observed across Europe. It is currently unclear whether this variant is spreading because of a transmission advantage of the virus or whether high incidence in Spain followed by dissemination through tourists is sufficient to explain the rapid rise in multiple countries.

 

f
fuz
新的变异株(20A.EU1, A222V)从夏季起在欧洲许多国家流荡。不知道现在的疫苗是否对这个变异有效
盘山
现在所有的冠状病毒都将被称为新冠病毒的变种了吗?LOL
赌城看客
人们一直关注新冠病毒S蛋白的变异,以前是D614G。这里是A222V,还有S477N...
盘山
分离提纯出任何一个变种的活病毒来了么?用纯病毒证明任何一个变种的致病性了么?这些序列的实际意义是什么?
f
fuz
分了;有临床数据;意义么?
赌城看客
可能要过些日子会有变异对传播、对预防和治疗影响的文章。
盘山
说明你没看懂文献。事实是从未分离提纯过。
盘山
原种都没分离提纯,也不妨碍专家们语不惊人死不休。
f
fuz
外行了。病毒的分离与提纯是两码事。
盘山
明明就是既没分离也没提纯。就算再批多少层科学专业的名头,也是皇帝新衣。

只不过很多人就像看皇帝游行的群众一样,担心说他在裸奔会显得自己无知,于是拼命赞美那衣服高明。

盘山
就跟所有的普通感冒一样,得了一次又一次,每次都有点不一样。不过现在都叫新冠变种了,

就可以推广疫苗,强制检测,随时TRACING,

毕竟感冒名声不响逼人做什么名不正言不顺。都叫做新冠的话让干什么都有人愿意。

f
fuz
嗯,放之四海而皆准