RT @TRyanGregory
The first XBB was a recombinant between two BA.2 lineages (BJ.1 x BM.1.1.1).
Here's an excellent thread by @firefoxx66 explaining recombination.
https://twitter.com/firefoxx66/status/1587762412110974976?t=8j8yxK5jRadg_SxbChhWKw&s=19
RT @TRyanGregory
The first XBB was a recombinant between two BA.2 lineages (BJ.1 x BM.1.1.1).
Here's an excellent thread by @firefoxx66 explaining recombination.
https://twitter.com/firefoxx66/status/1587762412110974976?t=8j8yxK5jRadg_SxbChhWKw&s=19