Authorities say they are confident there will be enough supply of vaccines to meet increased demand.
Almost 43,000 more people went from the city to the country last year, more than double that in 2019.
The federal Health Minister would not say if the government was talking to Pfizer about buying more vaccine doses.
Australia's new chief scientist also says scientists need to win the trust of those who don't believe in their work.
The Greens have pledged to block legislation that would include coal projects in renewables funding.
The pandemic has affected the bushfire recovery, but it will also affect how evacuations take place.
Prime Minister Scott Morrison is set to announce an overhaul of Australia's defence strategy, with less reliance on the US, and aimed squarely at China.
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