DHHS says evidence suggests positive cases can shed small amounts of virus for many weeks post-infection and even after they have recovered, as in this case.

There are now zero cases in Geelong and the south-west.

182 cases are currently active in Victoria. Of those, 174 are in metropolitan Melbourne under the Second Step of the roadmap and eight are in regional local government areas under the Third Step of the roadmap. There are five active cases in Mitchell Shire and three in Greater Shepparton.

Earlier, 12pm: Victoria recorded a single-digit increase in coronavirus cases, seeing seven new cases and five deaths overnight.

Of the seven, four are in Melbourne and three are in Shepparton, bringing active cases in regional Victoria to eight.

The three in Shepparton and five in Mitchell Shire make up the current active regional cases.

There are 816 Victorians who have passed away as a result of the pandemic. Overnight one female in her 70s, two males in their 80s and two females in their 90s passed away. Four of those five deaths are linked to aged care.

There are 23 Victorians in hospital and none of those are receiving intensive care.

A total of 2,875,056 test results have been received since the beginning of the year, an increase of 16,061 tests since yesterday.

The 14-day average to 13 October is 9.6 cases in metro Melbourne and 0.6 cases in regional Victoria.

Cases to 11 October that are mystery cases are 14 in Melbourne and zero in regional Victoria.

Premier Daniel Andrews said the next few days of testing will inform decisions about restrictions changing on Sunday.

"There are three in Shepparton, four in Melbourne, with more than 16,000 tests, that is a very strong outcome," Mr Andrews said.

"It is one that gives the very clear sign that the numbers are coming down, whether they are coming down as fast as we hoped, that is another matter.

"We will need to see the days between now and Sunday unfold. We will say more about that on Sunday, about some significant changes.

"I don't think that on Sunday we'll be able to go as far and as fast as we'd hoped but there will be significant steps."

There are 16 healthcare workers who are active cases.

30 active cases in aged care and there are no active cases in disability settings.

It's been revealed the same permitted worker, believed to be a truck driver, who sparked the Kilmore cluster also stopped off at Shepparton but didn't tell health officials until last night.

There are now three active cases in Shepparton that are self-isolating at home and are being monitored by Goulburn Valley Health.

It's been reported his family member got tested the day before he went to regional Victoria.

Another separate case has been detected in Bairnsdale, reported to be a teacher at Bairnsdale Secondary College that acquired the virus in Melbourne.

The teacher has not been on campus.

"What has occurred in Shepparton will require an urgent public health response and that has been brought to this task," Mr Andrews said.

"There are infections in Shepparton today that we know of and there is almost certainly going to be more that were all completely preventable if this individual had told the full story.

"He wouldn't have got into trouble for telling the whole story. It is only when you don't that we all have problems.

"We all have a challenge that is greater than it should be. We can't change that. That is why we are focused night and day to get everybody in Shepparton that needs to be tested, tested and put in an appropriate response around those people and pull this up as quickly as possible."

He urged people to tell health authorities the full truth.

"I want to reconfirm, there is no stigma or shame in getting this thing, it doesn't discriminate. What people can't do equally is discriminate in what they tell us. They have to tell people the full story.

"If you happen to have visited a pretty large regional town, to not tell us you have done that is not the right thing to do. Not for yourself, not for the people that are infected because of that and all the infections that may come that were all preventable, if back weeks ago, or certainly days ago, we could have done, in Shepparton and in Kilmore and Chadstone, to make sure people got tested and we found them quicker and their contracts could be away from everybody else.

Chief Health Officer Brett Sutton said his team relies on people telling the truth.

"We really emphasise how critical that is. It is not to emphasise that you can catch people out, but the reality is, if there is another cluster that emerges and someone says "I saw X, Y and Z" you will be found out.

"There is no reason not to tell absolutely every truthful element about where you have been, whether or not you have been working on particular days and where and all of your close contacts.

"If those individuals become cases, they are at risk, their families are at risk, their work mates and anyone else they come into contact with are at risk. I want to emphasise that just being honest with us and giving the full and frank account of all of those elements are really important.

"I recognise that there are issues that sometimes relate to a person wilfully hiding stuff and others who are genuinely fearful of consequences with respect to visa status.

"A lot of people have fears about what it might mean for their work. They should all be reassured that no employer has a right to sack you, to stop giving you hours because you become infected with coronavirus and subsequently recover. You have all of the normal entitlements of work that you have now."

Victoria's Commander of Testing and Community Engagement Jeroen Weimar said the advice follows the notification of three positive cases in Shepparton today.

"We have three active cases that are self-isolating at home and are being monitored by Goulburn Valley Health," Mr Weimar said.

"Extensive contact tracing has commenced by local authorities. We expect as part of that effort, further cases will be discovered."

"To everyone locally - even if you haven't been near these locations - if you feel unwell at all, please get tested as soon as possible and stay at home until you get your results," Mr Weimar said.

"If you need additional support to stay home, there are financial payments available to assist those who need it."

"We're asking everyone in the local community - and any Victorian who has loved ones in Shepparton - to share this message."

The current list of high risk locations in Shepparton are:

From tomorrow Shepparton residents can be tested at GV Health's Acute Respiratory Clinic at Graham Street, Shepparton. It is open seven days per week from 9:00am to 5:30pm.

Further testing sites will be established tomorrow and these will be publicised through the media and on the GV Health website. A pop up site will be established at the showgrounds from 12.30pm.

At this stage there are no known cases in the Benalla, Campaspe, Moira and Strathbogie regions.

In the last 24 hours Victoria Police issued a total of 56 fines to individuals for breaching the Chief Health Officer directions, including 12 for failing to wear a face covering when leaving home for one of the four approved reasons and nine at vehicle checkpoints.

There were 25,799 vehicles checked at the police checkpoints.

Police conducted 1732 spot checks on people at homes, businesses and public places across the state, with a total of 496,640 spot checks conducted since March 21.

Some of the breaches overnight include a man travelling from Melbourne to Phillip Island to spend time with friends and a woman travelling to Bacchus Marsh from a suburb in Stage Four restrictions (Rockbank) to attend a beauty salon.

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