COVID: What we know so far about the Omicron subvariant BA.2 | Coronavirus pandemic News

As the highly transmissible Omicron variant of the coronavirus continues its frenetic spread around the world, a new subvariant has been detected in dozens of countries.

Omicron was first reported by South Africa in November and has since replaced the Delta variant in most countries as the most prevalent strain.

The dominant form of Omicron, known as BA.1, continues to account for the vast…

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