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Omicron sub-variant BA.2: New COVID-19 strain spreads in South Australia | 7NEWS
BA.2 Omicron 'more infectious' amid spread of the COVID subvariant
BA.2 'stealth' Omicron COVID-19 variant: What we know | 9 News Australia
New sub-variant BA.2 behind COVID case spike in NSW
Cases of Omicron sub-variant rising across the country | ABC News
NSW confirms new Omicron sub-variant cases | SBS News
What Mayo Clinic COVID-19 experts know about new omicron BA.2 subvariant
How does BA.2 subvariant compare to original omicron strain?
‘More contagious than BA.1’ variant: Norman Swan on Omicron sub-variant BA.2 growth | ABC News
COVID-19 omicron subvariant, BA.2
Omicron sub-variant BA.2
The new subvariant of omicron is now the dominant COVID strain in the US
