US 21J Delta sublineage with S:675H (~1%, 4k seq, daily growth advantage ~1%)

[corneliusroemer]

New lineage proposal
by @corneliusroemer

Description
Sub-lineage of: B.1.617.2 (21J)
Earliest sequence: 2021-24 US
Most recent sequence: Current
Countries circulating: ~1% in US

Lineage was spotted because it has substitution S:675H, which is the site that is also substituted in #284 (although there the sub is to K). It seems to have a pretty steady growth trajectory, albeit only with ~15

It also has mutation 8829T which can be used to distinguish from other S:675H (there's apparently one in Luxembourg that's unrelated).

https://cov-spectrum-develop-git-lapis-and-refactoring-cov-spectrum.vercel.app/explore/World/AllSamples/Past6M/variants/international-comparison?aaMutations=S%3A675H&nucMutations=8829T&pangoLineage=B.1.617.2*

https://nextstrain.org/groups/neherlab/ncov/na-usa?c=gt-S_675

Country	Total Variant Sequences	First seq. found at	Last seq. found at
United States	3803	2021-24	2021-41
Sweden	30	2021-25	2021-30
Mexico	1	2021-29	2021-29
Canada	60	2021-30	2021-36
Argentina	1	2021-30	2021-30
Brazil	1	2021-31	2021-31
Israel	3	2021-31	2021-32
South Korea	1	2021-33	2021-33
Sint Maarten	5	2021-33	2021-33
Japan	1	2021-34	2021-34
United Kingdom	7	2021-35	2021-39
France	16	2021-36	2021-40
Germany	3	2021-38	2021-38
Greece	3	2021-38	2021-38

[c19850727]

Hi @corneliusroemer have you checked this sublineage recently?
there're ~5.8k sequences now and still showing a ~3% transmission advantage as per Cov-spectrum.

[chrisruis]

Thanks @corneliusroemer This is a sublineage of AY.119 and we've added this as AY.119.2 in v1.2.110 to start on the branch with G23587C (S:Q675H)