Victoria has recorded 11 new locally acquired COVID-19 cases.
Health officials say all are linked to previously reported cases although they were not in quarantine while infectious.
The state administered 17,360 vaccine doses in the 24 hours to Saturday evening and conducted 38,179 tests.
With 29 cases previously recorded on Saturday, there was concern Victoria would be forced to extend its current week-long lockdown beyond Thursday.
However Premier Daniel Andrews said on Saturday it was still too soon to tell.
Meanwhile, he is expected to announce details as soon as Sunday on when Victoria can expect an “additional” 150,000 doses of Pfizer vaccine promised by the federal government.
Mr Andrews says he’s “very pleased” by the agreement, struck with Prime Minister Scott Morrison on Friday evening.
It’s understood the extra supplies have been reallocated from a delivery originally scheduled for dispatch next month.
Health officials said Saturday’s tally of cases also were linked to current outbreaks but not in quarantine while infectious.
It was “a certainty that there are more cases out there”, Mr Andrews said.
“We have mystery cases, at least two.
“We don’t know where they are, who they’ve given it to, and everyone is at risk.”
As of Friday, more than 10,000 close contacts of positive cases in the state were isolating with 82 venues listed as exposure sites.