RT @TRyanGregory
Variants being discussed most right now:
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XBB.1.5 (Kraken). Very immune evasive *and* high ACE2 binding. Not a good combination. Descendant of XBB.1 (Hippogryph) and grandchild of XBB (Gryphon), which is a recombinant between BJ.1 x BM.1.1.1 (both in the BA.2 lineage).