Victoria's COVID-19 vaccinations are rolling out slowly, with less than a third of the supplied doses being administered.

According to federal figures, only 30 per cent of Victoria's doses were injected in the first week of the vaccination program. It comes as Victoria had a fourth consecutive day without any new cases.

There are 10 active cases in the state, with 13,525 tests in the previous 24 hours. By contrast, 74 per cent of New South Wales' doses were administered by Sunday.

On Monday, Victorian Health Minister Martin Foley called on the federal government to be more transparent about its rollout, as the state ramps up its regional vaccination program.

"We just think there's a bit of a need for the commonwealth to share more information, to be a bit more transparent," Mr Foley said.

His comments come after revelations a small number of people had been given the wrong dose of the vaccine at an aged care home in Brisbane.

In a separate incident in Victoria, vials of the Pfizer vaccine had to be thrown out after it could not be confirmed they had been stored at the correct temperature.

"We were quite disturbed to hear that there had been cold chain breaches that saw this very precious Pfizer vaccine essentially wasted," Mr Foley said.

The state government launched vaccination hubs in Bendigo and Ballarat on Monday.

There are now six hubs operating in Melbourne and regional Victoria, providing the vaccine to hotel quarantine workers, airport staff, and frontline health staff.