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Victorian cases surpass NSW for first time since Delta outbreaks began

NSW Premier Gladys Berejiklian warned this week that case numbers would “go through the roof” when her state reopened next month as it reaches 70 per cent of the population over 16 double vaccinated.

The Andrews government is hoping a vaccination sprint will see the state following a similar trajectory to NSW. “The best lived-experience we can point to is NSW,” Health Minister Martin Foley said, pointing to “high-risk” communities in Sydney’s west – similar socio-economic groups live in Melbourne’s west and north.

Victorian Health Minister Martin Foley.

Victorian Health Minister Martin Foley.Credit:Eddie Jim

“Those high-risk communities, once they got over 50 [per cent vaccinated], the curve started to bend. It’s the same variant, it’s the same vaccines, the communities are not dissimilar in a lot of ways,” Mr Foley said.

Victoria’s road map out of lockdown relied heavily on modelling released by the Burnet Institute in September, which foreshadowed thousands of new COVID-19 cases each day by late October. But the state could potentially avoid projected daily average infection peaks between 1500 and 3000 cases, as vaccination rates in high-risk communities increase.

The state’s effective reproduction number (the measure of how many people each infected person passes the virus onto) has fallen from 1.5 at the time the Burnet Institute conducted its modelling to 1.2 in recent days.

If that rate continues to fall – thanks in large part to increased vaccination and testing, people in the north and west of Melbourne changing their behaviour in response to the growing COVID-19 threat, and the shutdown of the high-risk construction sector – daily cases may not go as high as projected.

“A whole lot of work is being done to bring up those vaccination levels, and once you start to get control of the outbreak, the [reproduction rate] will naturally come down,” said Professor Margaret Hellard, co-author of the Burnet modelling.

“Similarly to what we’re seeing in Sydney local government areas of concern, there were high caseloads, and a huge amount of work was done to increase vaccination, work with local communities so they understood restrictions. This then lowers the [reproduction number], and it disproportionately has a good effect.”

Catherine Bennett, the chair in epidemiology at Deakin University, said it could take a higher level of vaccination to turn Melbourne’s outbreak around “because we have a different distribution of the virus in the community than Sydney. We don’t have it as contained as they did at a similar point”.

Professor Bennett said there had been a “concentrated effort to get the vaccinations rolling out in those hotspots in Sydney. They really had an extraordinary rise some weeks, an 8 to 9 per cent rise in people getting vaccinated with their first dose”.

She said the more widely distributed outbreak in Melbourne was proving more difficult to tackle. She commended the Victorian government’s strategy of pop-up vaccination hubs in high-risk areas.

“If you can boost the vaccination rates in areas with highest transmission, hopefully it starts dampening it down. It just might take us longer to get vaccines to the right spots in Melbourne.”

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Asked if case numbers in Melbourne would now plateau, Professor Bennett warned that, while they would, the state could see high numbers in the weeks ahead before a levelling off.

“We’re still on an upward incline. So while it could turn around any time, at the moment we’re tracking towards 1000 cases a day in the next few days and then 2000 a day in the next few weeks.”

Professor Bennett said it was crucial immunisation coverage was raised in vulnerable areas now Victoria had greater access to vaccines. If this was done, and the state succeeded in keeping cases below 2000 a day, “we could transition out of this by October 25 and avoid those predicted December highs”.

Opposition Leader Matthew Guy said the Victorian government should follow the lead of NSW, Tasmania and South Australia and commit to fully reopening the state from December 1.

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“We should have a road map in front of us that matches other states that says it’s about time we got our lives back, it’s about time we got hope back, it’s about time we lived with coronavirus,” Mr Guy said.

The City of Latrobe will enter a seven-day lockdown from 11.59pm on Tuesday after health authorities revealed four additional COVID-19 cases had been detected in the regional area.

“The public health teams have significant concerns about onward transmission in the Latrobe valley and have determined that the seven-day lockdown is needed to limit growth in cases”, a Health Department spokesman said.

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