Australia has tightened its vaccine, quarantine and testing rules.
Prime Minister Scott Morrison held an emergency National Cabinet meeting on the Covid-19 crisis with state and territory leaders on Tuesday night.
All quarantine workers and those transporting those in quarantine, as well as residential aged care workers, will have to be vaccinated to be allowed to work.
The post-quarantine test will also be mandatory.
Australian based epidemiologist Professor Tony Blakely spoke to Susie Ferguson.