Grampians Public Health Unit medical director Rosemary Aldrich said her team was unaware of the new COVID-positive case in Moorabool Shire.
This means it is likely to the shire's western end, towards Bacchus Marsh, as it does not fall under Grampians case monitoring.
Victorian Health Department deputy secretary Kate Matson earlier had suggested the case could have been linked to Ballarat.
Two new COVID infections were recorded in Ballarat on Saturday, taking the Grampians tally to 13 cases: 11 in Ballarat, one in Daylesford (identified last week) and one in East Wimmera (St Arnaud).
Two new active COVID infections have been confirmed in Ballarat on Saturday, taking the city's case tally to 11.
Victorian Health Department deputy secretary Kate Matson confirmed both new cases were linked to the three existing households with COVID in Ballarat.
One case has also emerged last on Friday in Moorabool Shire but Ms Matson said further details were still being sought as to whether this was linked to the Ballarat outbreak.
Moorabool Shire includes towns on the outskirts of Ballarat, including Gordon, Mount Egerton, Elaine and stretches to Ballan and Bacchus Marsh.
More than five per cent of the Ballarat population has been tested for COVID in the past two days with 3177 conducted.
Victorian Health Minister Martin Foley said this was a remarkable effort and thanked everyone for coming forward to be tested in Ballarat.
"It's also a remarkable effort by our testing teams. I want to thank Ballarat Health and pathology partners," Minister Foley said.
"It's gone from a pretty small op to 100mph in a pretty short amount of time."
Testing is available in eight Ballarat locations. See here.
People are also encouraged to be vaccinated.
Ballarat Health Services is urgently reminding people walk-up vaccines are only available for AstraZeneca and not Pfizer vaccines at the mass vaccination hub at The Mercure on Main Road.
Pfizer vaccines must be booked via Coronavirus hotline on 1800 675 398 or online.
Both vaccines are available for adults aged 18-plus. AstraZeneca is the only available vaccine for over-60s.
Victoria has recorded 535 new local COVID-19 cases, as some restrictions slightly ease in Ballarat at Melbourne.
Of the 535 new statewide cases, 62 have been linked, meaning 473 are currently classed as mystery cases.
One more death has been recorded.
Reported yesterday: 535 new local cases and 0 cases acquired overseas.— VicGovDH (@VicGovDH) September 17, 2021
- 45,537 vaccines administered
- 61,622 test results received
- Sadly, 1 person with COVID-19 has died
More later: https://t.co/eUcG50Y3T0#COVID19Vic#COVID19VicData [1/2] pic.twitter.com/85OfKkUeYl
There were 45,537 vaccinations administered and 61,622 tests received on Tuesday.
An update on Ballarat's COVID outbreak will be provided later today.
It comes as Melbourne and Ballarat residents simultaneously prepare to revel in modestly eased COVID-19 restrictions on Saturday after reaching 70 per cent first dose coverage across Victoria's eligible population.
Among the changes, people will be able to meet one person from another household for a walk or picnic, outdoor exercise time is doubled and the travel limit expanded to 10km.
Fully vaccinated adults can see five people from two households, plus dependants for a picnic.
The state government is planning to outline a full roadmap out of lockdown on Sunday, tied to double dose vaccination rates and based on Burnet Institute modelling.
The Australian Nursing and Midwifery Federation says it's critical Victoria doesn't open up too hastily, as hospitals brace for a wave of COVID-19 patients in coming weeks.
"It's not about getting on the beers too early because there won't be beers to be had whilst you're in hospital in an ICU bed," ANMF Victorian branch secretary Lisa Fitzpatrick said.
The first shipment of Moderna vaccines have arrived in Australia, with one million doses expected to be in the country from this weekend.
Moderna is the third type of COVID-19 vaccine to be used, with national first dose figures for the Pfizer and AstraZeneca jabs now cracking the 70 per cent milestone.
The Moderna shipment arrived in the country on Friday night, with a second expected soon after.
Health Minister Greg Hunt said the Moderna doses meant more GP clinics would be able to administer the vaccine to the public.
"These are very important because they simply provide not only more vaccines, but more points of access for Australians everywhere," the minister said.
"My hope is that everybody who has not yet taken the vaccine will come forward over the coming days and weeks and there is sufficient vaccine for every Australian before the end of October, if not slightly earlier."
Epidemiologist Mary-Louise McLaws said the new vaccine would be crucial to lifting the vaccination rate of young Australians.
"The young who have been placed at the back of the queue can actually get Moderna into themselves very fast, and they can be doing it for Pfizer as well," she told ABC.
"I'm really pleased for Australians to get Moderna, because it doesn't need ultra-cold storage, which basically means that GPs can roll it out easily, pharmacies can roll it out."
The vaccine rollout was a major talking point at the latest national cabinet meeting, which was held on Friday afternoon.
The national plan to transition away from lockdowns once vaccination targets are reached was also discussed, along with updated Doherty Institute modelling and the situation in virus-affected jurisdictions.
The most recent federal figures showed Australia is now at 70.5 per cent of over 16s having received their first vaccine dose, while more than 45 per cent are fully immunised.
However, the figures for young age groups remain significantly lower, with just 22 per cent of 25 to 29-year-olds and 19 per cent of 20 to 24-year-olds being fully vaccinated.
It comes as home quarantine trials are set to begin for fully vaccinated returning Australians.
The four-week trial will see 175 people who have received two vaccine doses spend seven days in quarantine at home, rather than two weeks in a hotel.
Health Minister Greg Hunt said he wanted to see home quarantine as soon as possible to allow more fully vaccinated people to return to Australia from overseas.
- with AAP
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