The BA.2 is a sub-lineage of the Omicron variant -- and scientists are racing to assess the level of risk it presents.
What do we know about the Omicron subvariant BA.2?
Omicron varyantı ortaya çıktıktan bir ay sonra 78 ülkede tespit edilmişti. Source: Omicron variant - Getty Images
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.
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