Possible BA.2 sub-lineage

[amniewiadomska]

BA.2 branch with the following mutations:
ORF1ab:A2909V (nsp4:A146V) and ORF3a:L140F
Appears to be circulating in multiple SE Asian countries (mainly Japan and Singapore, but also Indonesia, Vietnam and Cambodia).
73 genomes so far. See attached list.
BA2plusORF3L140F.txt

Below is a tree of BA.2 genomes (minus Denmark samples) highlighting this branch.

Still relatively small numbers compared to Europe and India but may be increasing slightly in SE Asia.
Not sure if it qualifies for a new sub-lineage but may be worth keeping an eye on.

[chrisruis]

Thanks @amniewiadomska This is the recently added BA.2.3