Thread by @firefoxx66

All the focal builds linked from CoVariants.org are now updated with data from 2 Mar.

This includes the new focal builds for 501Y.V1, 501Y.V2 & 501Y.V3 (B.1.1.7, B.1.351, P.1) - links in the thread....

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501Y.V1 (B.1.1.7) is still significantly downsampled due to the extremely high number of sequences in this cluster - but the focal build helps a bit!

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nextstrain.org/groups/neherla…

501Y.V2 is not downsampled much now, which means it gives a pretty good view of where the variant has spread. Shown in large dots here are the clusters in Mayotte, the French territory off the coast of Africa (yellow circle near Africa).

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nextstrain.org/groups/neherla…

Zooming in on 501.V2 a bit & filtering to Europe we can again see the Mayotte clusters (turquoise, as they are part of France), plus other clusters, for example in Belgium & the Netherlands.

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501Y.V3 (P.1) has no downsampling so we can also see a good view of how it's spread.
The larger yellow clusters below are from Italy and Belgium.

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nextstrain.org/groups/neherla…

Another focal build update people might be interested in is 20C/S:452R - sometimes colloquially called the 'California variant.'

Primarily still found in California, it has spread across the US & further afield.

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Finally, in the S:E484 build, we can see the cluster that makes up what has been called the 'New York variant', which carries the E484K mutation.

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nextstrain.org/groups/neherla…