ABOUT one in four people doorknocked by the army for COVID-19 contact tracing have not been at home.
It comes as Victoria recorded 627 new cases and eight deaths.
Premier Daniel Andrews said more than 100 cases were referred to Victoria police.
It comes as experts prepare to analyse Victorian coronavirus data in the coming days.
Mr Andrews flagged this might reveal the need to take further steps to fight the COVID-19 outbreak.
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He said it was not acceptable if one in four people were somewhere else when doorknocked.
Mr Andrews said it was not just about compliance, but providing information to families, and support, such as with grocery deliveries, or prescriptions filling.
A total of 1030 of Victoria's COVID-19 cases are in health workers.
Nearly 930 are linked to aged care.
Chief Medical Officer Brett Sutton said it was a huge concern to see healthcare workers developing illness.
"It is not always straightforward to understand how they've acquired their illness," he said.
"We have to be open to the fact that personal protective equipment may or may not work in certain circumstances.
"Transmission is a risk within workplaces, but we do need to dig down into it to understand how that's actually happening."
ANOTHER 627 Victorians have been diagnosed with COVID-19, and eight more have died.
The numbers have dropped from Thursday, which saw Victoria's highest increase in new cases, of 723.
Premier Daniel Andrews has flagged further announcements for the state after a detailed analysis of case data.
He said close data analysis may well reveal Victoria needed to take further steps to combat COVID-19.
Mr Andrews said Friday's case numbers, from halfway through the state's stage three restrictions, were still too high.
He said public health experts would go through case data closely to examine trends.
He said there would be more to say about this detailed analysis on Saturday and Sunday.
"We could not open up with these numbers. We could not open up even with significantly less than these numbers," he said.
"That analysis is critically important. It will give us not just opinions and theories, it will give us the real time clarity about what's happening with this virus right now, and what we may need to do to drive these numbers down further."
Mr Andrews said Friday was not the day to speculate on what new measures there would be.
Victoria recorded its highest number of new cases ever on Thursday, with 723 COVID-19 diagnoses.
Mr Andrews announced masks would be compulsory for every regional Victorian when out of their home from 11.59pm Sunday night.
Greater Bendigo recorded seven new cases, bringing its active total to 18. The Macedon Ranges recorded three new cases, making a total of 14 active cases.
Health leaders warned on Thursday that new cases this week had come about by community transmission, with apparently several sources.
Demand remained high at Bendigo's testing facilities. Queues for drive through testing at Bendigo Health stretched several hundred metres at 11am on Thursday.
Authorities warned those being tested they needed to go straight home, and self isolate.
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