Update 3.20PM: Greater Geelong has recorded one active case of coronavirus overnight and remains the only shire in the western Victoria corridor to have an active case.
Department of Health and Human Services data confirmed no cases remain in Warrnambool, Moyne, Corangamite, Colac-Otway, Glenelg, Southern Grampians, Moorabool, Surf Coast, Ballarat, Bendigo and Horsham.
Victoria has recorded 12 new cases of coronavirus since yesterday, with the total number of cases now at 20,305.
There has been one new death from COVID-19 bringing the state's total to 811 people.
Earlier 11AM: The Geelong area has recorded one new case of coronavirus over the past 24 hours.
Premier Daniel Andrews confirmed this case was a "previously cleared case" which had retested as positive and was under close review as it might be a false positive.
"We think the 12th is not actually a positive, but someone who has got trace elements of the virus weeks after they were first infected," Mr Andrews said.
Chief Health Officer Brett Sutton said the state was going "above and beyond" the national guidelines for contract tracing.
"The 12 cases today; one is probably not real and 11 are linked to known cases, that means by definition there are no cases of unknown acquisition today and that's what we want every day," he said.
This brings the number of active cases to six, with five of those in the Mitchell Shire.
Victoria recorded a total of 12 new cases of coronavirus overnight, bringing the state's number of active cases to 186.
Of the 12 new cases, 11 are linked to existing cases.
Education Minister James Merlino announced a $250 million package to recruit and deploy more than 4100 tutors to support more than 200,000 students across the state in the 2021 school year.
"This is the single biggest boost to individual learning in our state's history," he said.
"We're dealing with a one-in-100 year pandemic and we are responding in an unprecedented way.
"If your child has fallen behind, we will bring them back up to speed."
Mr Merlino estimates about 80 per cent of the tutors will be women and the tutors will be teachers who are currently retired, pre-service or casual relief in schools.
These additional tutors will be "over and above" the existing workforce and the package is looking at providing around three group sessions with up to six students, but schools will make the final decision based on their students' needs.
Mr Merlino said every government school would receive funding for the package which would be weighted on disadvantage.
There will be $209.6 million for government schools to employ 3500 tutors for the 2021 school year.
There will be $30 million for Catholic and independent schools to employ 600 tutors and there will be a further $8.6 million for Koorie support workers and 60 multilingual and bi-cultural tutors for students where English is not a student's first language.
Mr Andrews also confirmed there had been one death overnight, a male in their 70s.
There were no new cases with and unknown source recorded in regional Victoria in the past 24 hours and the region's 14 day rolling average is 0.4.
For metropolitan Melbourne, there were 13 new cases with an unknown source recorded bringing the capital's rolling average to 10.
There are 26 people in hospital but none are in intensive care, 30 cases in aged care and 16 health care workers are active cases of the virus.
A total of 2,858,794 tests of coronavirus have been received since the beginning of the pandemic, an increase of 8201 tests overnight.
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