Two senior government sources toldThe Agethey were looking for a run of in which a much greater proportion of new cases,if not all,had been in quarantine for their infectious periods before the lockdown can lift.
A suburb in Melbourne's west is an area of concern for COVID-19 transmission,with 10 of today's cases linked to the Caroline Springs region.
Just five of Tuesday’s 20 new cases fit that criteria,up from one of Monday’s 11 and none of Sunday’s 11.
“It does seem to be heading in the right direction,” said one government source,who asked to remain anonymous as they were unauthorised to speak publicly.
Victoria’s senior ministers have been meeting daily during the state’s sixth lockdown and an announcement on the extension could come as soon as Wednesday.
The fifth lockdown last month was initially for five days. Premier Daniel Andrews then extended it for a week when nine of 13 new cases – or about 69 per cent – were in isolation during their infectious periods. This is a greater proportion than Tuesday’s 25 per cent,suggesting it will not be enough to lift the lockdown on Thursday.
Adrian Esterman,a professor of biostatistics and epidemiology at the University of South Australia,said as well as ensuring cases were isolating during their infectious periods,the government should not ease restrictions in Melbourne before daily infections drop to single digits.
Victoria recorded 10 new cases,all in isolation while infectious,when it lifted the previous lockdown and Professor Esterman said in hindsight that appeared “about a week too early”.
“I would hate them to do the same thing this time,” he said.
“The four-day average of this outbreak is still going up and I think it will be another two or three days before it peaks. You will probably need the same time frame,so at least a week,if not more,for the curve to die out.”
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COVID-19 response commander Jeroen Weimar on Tuesday urged all visitors to CS Square Shopping Centre in Caroline Springs – “the area of most concern” in Melbourne’s west – between July 27 and August 5 to get tested.
Of Tuesday’s 20 cases,10 were linked to the shopping centre,including two shoppers who may have contracted the virus through “fleeting transmission”. None had been vaccinated against COVID-19.
Health Minister Martin Foley said changes to eligibility that allow people aged 18 to 39 to access AstraZeneca vaccines through state-run hubs had led to a three-fold increase in first doses compared with Monday last week.
“Clearly,young people have assessed their personal situation in a strong and informed manner and many have determined that there are significant risks to remaining unvaccinated during a Delta outbreak,” he said.
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Health authorities were continuing their focus on public housing towers in Flemington after three family members were among Tuesday’s cases.
The trio,the first new cases in the towers since eight family members tested positive on Sunday,have been moved to hotel quarantine,with further testing at the two Racecourse Road towers continuing.
“Can I stress there are no positive cases,or no known positive cases at this point,[remaining] anywhere in the Flemington estate,” Mr Weimar said.
He said he also harboured concerns around the Newport Football Club,where five cases have been detected and there is a “widespread social network” centring around 180 identified primary close contacts.
The Health Department’s list of late on Tuesday night.
Anyone who worked at the Caroline Springs Square shopping centre over a four-day period from August 2 is considered tier-1 contact and needs to isolate for 14 days regardless of their test result,according to updates to the official exposure site website late on Tuesday.
Late on Tuesday night,the male public toilets at the shopping centre were declared a tier one site on August 4 and 5 from 9.30am to 4.30pm as well as several public transport sites including bus routes and the Sunbury train line.
The entire shopping centre was declared a tier-2 site on Monday for a10-day period up to August 5 and that was extended on Tuesday to also cover August 6.
The gaming lounge at the Taylors Lakes Hotel in Melton was also added as a tier-1 site for an exposure on Sunday between 5.15pm and 8.30pm. The whole hotel had earlier been listed as tier-2 venue.
The new tier-2 additions included the public housing tower at 126 Racecourse Road in Flemington,a car dealership in Brighton,an outlet at the Northland Shopping Centre in Preston,petrol station in Elwood and a Bunnings in Taylors Lakes.
Other new exposures on Tuesday included a gym in Caroline Springs,the Woolworths,Bunnings and VicRoads office in Melton,a post office in Hoppers Crossing,the Sugar Gum Hotel in Hillside and the Coles in Aintree.
Victorian health authorities require anyone who has visited a tier-2 site at the specified time to isolate until they test negative for the virus.
Meanwhile,a doctor who works at Melbourne’s Royal Children’s Hospital has tested positive for COVID-19.
The doctor was not infectious while working at the hospital,according to a Royal Children’s Hospital spokesperson.
However,the Health Department said it was investigating whether he was infectious while working on Monday at private medical rooms next door to the hospital and with which it shares common areas.
The doctor is one of 20 locally acquired COVID cases announced in Victoria on Tuesday.
According to Nine,he is believed to have acquired the virus through a household contact linked to an outbreak at Mount Alexander College in Flemington.
NSW reported on Tuesday. At least 97 of the new cases were infectious in the community.
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