World BA.2 Omicron Subvariant Driving Most Global Cases, W.H.O. Says March 24, 2022Alyssa LukpatComments Off on BA.2 Omicron Subvariant Driving Most Global Cases, W.H.O. Says Globally, BA.2 made up about 86 percent of cases reported to the W.H.O. between Feb. 16 and March 17, the agency said in a report on Tuesday.
