What will winter bring as the sibling of Omicron rises?
The sub-variant of Omicron, known at the moment as BA2, is being blamed for a rise in cases in NSW and likely in other states and territories.
And overseas, Hong Kong is struggling with a wave which is killing more and more people due to low levels of vaccination in high risk age groups.
So what could the sub-variant mean for Australia as the weather slowly cools down and we enter darker, cooler times?
Also on today's show:
* China goes into lockdown in several big cities
* Australian researchers have uncovered resistance mutations to Sotrovimab
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