Omicron Xbb 2024 Nsw. Recombinants of the ba.2 variant, xbb and xbb.1.5, together accounted for 44.1 per cent of the total cases in the country for the week ending december 31. Xbb.1.5 is derived from the omicron variant ba.2, and while the current bivalent vaccine was developed for the ba.5 variant, it has been shown to generate antibodies that recognize ba.2.
We investigated if the correlation. If you got a bivalent.