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. https://ift.tt/cNijWv5 https://ift.tt/U1E2Vsh World New York Times March 23, 2022 at 08:00PMThe W.H.O. says the BA.2 subvariant of Omicron is driving most cases around the world.

By Alyssa Lukpat from NYT World https://ift.tt/cNijWv5
https://ift.tt/cNijWv5 https://ift.tt/U1E2Vsh New York Times