Victoria has recorded another significant rise in cases amid its latest Delta outbreak, with nearly half of new infections a mystery to tracers.
The Department of Health announced 76 new locally acquired Covid-19 cases on Tuesday, with daily infections lingering below 100 for nearly a week.
Thirty-one of the latest cases at this stage are unlinked, a rise of 10 from Monday's figures.
While several experts warn the state remains on a knife-edge, Chief Health Officer Brett Sutton said the state's number of cumulative days with 50 infections or more was "relatively flat compared to how it took off in NSW".
"We are hoping to see a trend, and maybe it's stabilising over the last few days," he said on Monday.
Health Minister Martin Foley said he hoped cases had now plateaued.
While the number of Tuesday's cases that were infectious in the community has not yet been revealed, the number of exposure sites has now ballooned to over 1,000.
Among the latest additions are multiple Woolworths, Coles and Aldi supermarkets.
On Sunday Premier Daniel Andrews indefinitely extended the state's sixth lockdown, with clarity on its new length expected in the coming days.
Victoria now has 841 active cases of Covid.
More than 50,000 people were tested on Monday, with 32,162 vaccine doses administered.