Dr. Abdi Mahamud, the WHO’s Covid incident manager, said it’s unclear whether BA.2 can reinfect people who previously had BA.1.
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.
Van Kerkhove emphasized that there's no indication of a difference in illness severity between BA.2 and BA.1, though she noted that research is ongoing.
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