WHO says new omicron BA.2 subvariant will rise globally, but scientists don’t know if it can reinfect people
KEY POINTS WHO official Maria Van Kerkhove said the omicron subvariant BA.2 is more transmissible than BA.1, currently the dominant version of omicron worldwide, and will likely become more common. Dr. Abdi Mahamud, the WHO’s Covid incident manager, said it’s unclear whether BA.2 can reinfect people who previously had BA.1. Van Kerkhove emphasized that there’s…










