Proposal for a B.1 sublineage, circulating in Germany during 2023 [32 seqs]

[corneliusroemer]

Most of (sequenced) global B.1* circulation in 2023 falls into C.1, B.1.20 and the proposed lineage in #34

The second biggest lineage in 2023 that is still B.1 behind #34 is a lineage sequenced 13 time in Germany in late 2023.

In 2022, the lineage was also found once in Belgium, and the ancestor was also found in Australia and the US.

https://next.nextstrain.org/mpox/lineage-B.1?branchLabel=aa&gt=nuc.101418T

Defining mutations (broad):

• C34784T (unique, i.e. has not occurred elsewhere within B.1 yet)
• C101418T(unique, i.e. has not occurred elsewhere within B.1 yet)

[corneliusroemer]

There are now 32 German sequences from this lineage, but they may well be from 2022 rather than 2023 due to a date error, see: sequence-review/mpox#2

[corneliusroemer]

Submitter has confirmed that the dates are correct, so this lineage might be worth designating. Since I opened the issue, around 17 more sequences have been uploaded, all from Germany.

[mengfeip]

Is there an update about the above proposed B.1 sublineage circulating in Germany 2023?