Lots of chat about B.1.640.2 in the last few days - just a few points to keep in mind:
- B.1.640.2 actually predates Omicron
- in all that time there are exactly... 20 sequences (compared to the >120k Omis in less time)
Def not one worth worrying about too much at the mo...

— Tom Peacock (@PeacockFlu) January 3, 2022