XBB.1.9.1

In Indonesia, Omicron XBB.1.9.1 (yellow) now has a >50% share - one country at least that will skip an Omicron XBB.1.5 wave (cyan) - not because it didn't have an advantage there, but because another even fitter variant emerged. Second is Singapore, where XBB.1.9.1 has 15% share. pic.twitter.com/bqTjkU69rk

— Tom Wenseleers (@TWenseleers) February 6, 2023