The latest focal S:N501 build is now up! It includes data from 4 Jan 2021.

We have new sequences in 501Y.V1/B.1.1.7 from Denmark, Singapore, Australia, Italy, Spain, France, Portugal, Germany, Brazil, Jamaica, Luxembourg, Pakistan & the USA.

1/12

https://t.co/FTjvV7T7wL

Denmark has 43 new sequences (in orange). These indicate additional introductions, as well as further expansion of the existing large local transmission cluster we saw previously (shown in zoomed divergence view).

2/12
10 new sequences from Portugal (orange) indicate additional, separate introductions.

3/12
Singapore has 5 new sequences (yellow). These indicate at least 5 separate introductions for the total of 6 sequences, with two identical sequences likely being 1 introduction.

4/12
5 new sequences from the US, from Florida & California (older sequences crossed through).

Zooming in (divergence view) on the California cluster, the relationship between these samples is difficult to infer from phylogenies alone.

5/12
3 new sequences from Spain (orange) indicate 2 more introductions, with the 3rd new sequence linking to the first sequence (green).

6/12
2 new sequences in Germany & 1 new sequence in Australia indicate separate introductions

7/12
1 new sequences in Italy represents another separate introduction (little hard to see in this picture), and 1 new sequence from France (yellow) indicates an additional introduction.

8/12
Additionally, we have the first sequences that fall in 501Y.V1 from Brazil (1), Jamaica (1), Luxembourg (1), & Pakistan (2).

Though hard to see on the larger tree, the 2 Pakistan sequences sit apart on the phylogeny, & thus indicate separate introductions.

9/12
The S:N501 'reduced UK' build is also updated. *Please remember not to use this build to look at connections between countries!* Use it only alongside the larger, complete S:N501 build.

10/12

https://t.co/9md0yn9Qgp
Finally, the country plots have also been updated. As countries are preferentially sequencing 501Y.V1 samples at the moment, the 'hot pink' sections *do not* represent true frequencies of the variant in countries!

https://t.co/c7wlQOLRiq

11/12
We can see the current screening process in action in the Swiss chart - variants with the 69/70 deletion are being preferentially sampled. Sequences from the 439K cluster also have that deletion - they're being picked up in the search to find 501Y.V1! 🙃

12/12

More from Dr Emma Hodcroft

Lots of tweets about this today!
Let's see what we can see in the focal S:E484 build!

Phylogenetics (what I do - making 'family trees' from virus genetics) can be very informative to see how different variants are spreading, and how cases

There are two variants circulating predominantly in Brazil:
- 20B/S.484K seems to be older & more widespread. It has (among others) a mutation at position 484
- 20J/501Y.V3 is smaller & detected recently. It has mutations at 501 *and* 484.

2/10

https://t.co/Cw5u2kuATa


The variant predominantly in the UK (501Y.V1 / B.1.1.7) and the variant predominantly in South Africa (501Y.V2) also both have 501. 501Y.V2 *also* has the 484K mutation.

Why are there concerns about these mutations? You can read more at https://t.co/wVE7ubYBoy!

3/10


The view below is from an analysis focusing on sequences with a mutation at 484. It shows all the samples in the 2 variants (20B/S.484K & 20J/501Y.V3) & how they're related. More closely related = closer together (very, very roughly).

4/10


We can colour these samples by region to see where they're from. As we expect - most are in Brazil! A few are in Argentina (also red).

5/10

https://t.co/Cw5u2kuATa

More from World

A few thoughts on this sad development 👇👇

20 academics criticizing an paper is fine; good science, really

10000+ hate mail for studying schools in Sweden is insane

Anonymous docs/ prof (hiding in faceless accts) on twitter smearing researchers is insane
[thread] https://t.co/QYldLD3WO0


In April 2020, @jflier and I saw this coming

We saw increasingly heated and personal attacks against scientists merely for having a range of views on COVID19 (PS there is no playbook/ right ans)

Tying science to naked politics was also bad idea, we

Yet, repeatedly that is what happened. Twitter 'experts' displayed an absolute intolerance to other views

Folks who disagreed weren't just wrong, they were malicious actors spreading "disinformation"

Really? Someone worked for 25 years as faculty to suddenly spread lies?

Disinformation has been so misused that it has lost meaning.

I recently saw an ID doc & lab researcher in the UK be accused of spreading "disinformation"

hahah, get outta here, you are trying to say "i disagree" but your keyboard is broken

Personal attacks have become so bad that I have seen a lab researcher accuse a doctor of wanting to engage in inappropriate relationships with patients due to diverging views on vaccine messaging

Seriously? It was a low point even for twitter

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THE MEANING, SIGNIFICANCE AND HISTORY OF SWASTIK

The Swastik is a geometrical figure and an ancient religious icon. Swastik has been Sanatan Dharma’s symbol of auspiciousness – mangalya since time immemorial.


The name swastika comes from Sanskrit (Devanagari: स्वस्तिक, pronounced: swastik) &denotes “conducive to wellbeing or auspicious”.
The word Swastik has a definite etymological origin in Sanskrit. It is derived from the roots su – meaning “well or auspicious” & as meaning “being”.


"सु अस्ति येन तत स्वस्तिकं"
Swastik is de symbol through which everything auspicios occurs

Scholars believe word’s origin in Vedas,known as Swasti mantra;

"🕉स्वस्ति ना इन्द्रो वृधश्रवाहा
स्वस्ति ना पूषा विश्ववेदाहा
स्वस्तिनास्तरक्ष्यो अरिश्तनेमिही
स्वस्तिनो बृहस्पतिर्दधातु"


It translates to," O famed Indra, redeem us. O Pusha, the beholder of all knowledge, redeem us. Redeem us O Garudji, of limitless speed and O Bruhaspati, redeem us".

SWASTIK’s COSMIC ORIGIN

The Swastika represents the living creation in the whole Cosmos.


Hindu astronomers divide the ecliptic circle of cosmos in 27 divisions called
https://t.co/sLeuV1R2eQ this manner a cross forms in 4 directions in the celestial sky. At centre of this cross is Dhruva(Polestar). In a line from Dhruva, the stars known as Saptarishi can be observed.