Taiwan 1st country in Asia to approve Moderna's BA.5 booster 600,000 Omicron BA.4/BA.5 bivalent mRNA vaccine to arrive in Taiwan early November Oct. 27, 2022 16:11# BA.5 booster# bivalent vaccines# Omicron vaccine600,000 Omicron BA.4/BA.5 bivalent mRNA vaccine to arrive in Taiwan early November # BA.5 booster# bivalent vaccines# Omicron vaccine