Protesters have rallied against vaccine mandates during demonstrations in Melbourne. Photo / Getty Images
Victorian Premier Daniel Andrews says it's "only a matter of time" before people will need three doses of a Covid jab in order to be considered fully vaccinated.
It comes as the state reported 10,589 new infections and 20 deaths on Sunday.
Currently only 31 per cent of Victorians have received a booster shot, despite hundreds of thousands of appointments now being available and 2.1 million people now eligible.
Andrews said movement around a third dose mandate would likely happen in the next week or so.
"I think it's only a matter of time before the relevant federal agencies confirm that it is three doses to be protected," he said.
"There's already been some mandating done for third doses, and there will be more.
"Those who are not vaccinated have made the wrong choice. They've made a choice that puts so many other people at risk. I could not be more clear about that."
Thousands of anti-vax protesters have taken to the streets of Melbourne in recent weeks rallying against jab mandates and Covid restrictions.
The Victorian opposition has also come out against a third dose mandate, with Liberal leader Matthew Guy questioning when the rules would end.
But Andrews on Sunday rejected the criticism, telling reporters he would continue to make "unpopular decisions" to keep Victorians safe.
"The notion that this is a bad thing, the use of anti-vax language, it doesn't make any sense to me," he said.
"The vaccinated economy is here, mandates are here – we didn't get to 93 per cent fully vaccinated without mandates.
"It's all about keeping us safe, whether that's popular or not, that's not my concern. You've got to make difficult decisions and push forward from there."
In the latest reporting period, 4479 of the new cases were reported from PCR tests and 6110 cases were from rapid antigen tests.
The total number of active cases in the state was 78,294, down from 79,836 reported on Saturday and 101,605 on Friday.
There were 889 patients in Victorian hospitals being treated with the virus.
Of those in hospital, 111 people are being treated in intensive care, with 35 people on ventilators.
Victorian health authorities said on Saturday they had detected cases of the new Omicron sub-variant.