What do we know about the Omicron subvariant BA.2?

Even as the Omicron wave appears to be receding in a number of Australian states and nations around the world, the emergence of a new sub variant in Australia has put health authorities on alert. The BA.2 is a sub-lineage of the Omicron variant -- and scientists are racing to assess the level of risk it presents.

BA.2 is a sub-lineage, or sub variant, of the Omicron Coronavirus variant, and scientists are racing to assess the level of risk it presents Source: Getty

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