Australia has reported 1,607 new coronavirus cases as states and territories gradually shift from trying to eliminate outbreaks to living with the virus.

Victoria, home to about a quarter of Australia's 25 million people, recorded 507 cases as its premier said a weeks-long lockdown will end once 70 per cent of those 16 and older are fully vaccinated, whether or not there are new cases.

Premier Daniel Andrews said the state might reach that vaccination threshold around Oct 26, Reuters reported.

The Covid-19 plan follows a federal scheme that will end lockdowns at a 70pc vaccination rate and gradually reopen international borders at 80pc.