The new omicron subvariant, BA-2, is at least 30% more transmissible and accounts for a quarter of all new cases. Dr. Anthony Fauci said the subvariant could become more dominant in the coming weeks.
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The new omicron subvariant, BA-2, is at least 30% more transmissible and accounts for a quarter of all new cases. Dr. Anthony Fauci said the subvariant could become more dominant in the coming weeks.
