Australia's coronavirus vaccine rollout has been likened to The Hunger Games with states desperate for increased supplies to further bolster jab rates.

NSW Health Minister Brad Hazzard on Monday used the popular series of dystopian books and movies to describe the immunisation program.

"It is almost a sense now of The Hunger Games, of people chasing vaccine," he told reporters in Sydney.

"Until we get enough vaccine and enough GPs actually at the front line able to provide that vaccine into arms, we will continue to have effectively The Hunger Games going on here in NSW."

With AstraZeneca only recommended for people aged over 60, limited Pfizer supplies are preventing the rollout's immediate expansion.

Federal Health Minister Greg Hunt believes a record week of doses being administered is a strong indication the rollout can gather momentum.

"In relation to vaccines, it is the most competitive global environment imaginable," he told reporters in Melbourne.

The federal government expects to deliver 682,000 Pfizer doses to NSW in July, up from 400,000 in June.

Queensland is slated for an increase of almost 200,000 to 430,000 doses in July.

In the sunshine state, almost 140,000 people have registered to receive a Pfizer jab but Premier Annastacia Palaszczuk warned it could be October or November before shots were administered.

"That is when all the supply comes in from the federal government," she said.

Labor leader Anthony Albanese said Mr Hazzard's description was apt as he criticised the federal government.

"They are responsible for the supply of vaccines, they are responsible for rollout in aged care, responsible for the COVID-19 safe app," he told reporters in Toowoomba.

"Everything they have had responsibility for has been botched."

Australia is due to receive a total of 40 million Pfizer doses along with 10 million of the yet-to-be approved Moderna vaccine this year.

While just 9.1 per cent of people over 16 are fully vaccinated, Mr Hunt pointed to an "incredible result" of 880,000 doses in the past week.

"That shows the distribution system is working. It's a global challenge. Australia is part of it."

Victoria's COVID-19 Commander Jeroen Weimar described restricted vaccine supply as hugely frustrating and the reason why the state hadn't extended its rollout to under-40s.

But he stopped short of Mr Hazzard's reference to a contest to the death.

"We're not using bows and arrows yet so I wouldn't go there immediately," he told reporters.

NSW Premier Gladys Berejiklian has identified an 80 per cent vaccination rate to reopen international borders, while business leaders want firm targets for reopening.

Scientific modelling is underway to determine vaccine thresholds under a four-stage plan to end lockdowns and border restrictions.

The medicines regulator is also considering an application from Pfizer to have its vaccine used in 12 to 15 year olds amid concern about the Delta strain.

Mr Hunt said he didn't want to pre-empt a decision from the Therapeutic Goods Administration.

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Australia's 472-strong team for the Tokyo Olympics features a record number of women and Indigenous athletes.

The team for the Games starting on July 23 includes 254 women and 218 men, with 16 Indigenous athletes.

The number of female athletes is 40 more than the nation's previous most at a Games, at the 2016 Rio Olympics.

And the 16 Indigenous athletes is four more than at the Sydney 2000 Olympics.

Australia's team is the second-largest to contest an away Olympics, 10 shy of the 482 athletes who contested the 2004 Athens Games.

Australians will compete in 33 sports in Tokyo including all four new Olympic sports of karate, skateboarding, sport climbing and surfing.

At the Rio Games, Australia won eight gold, 11 silver and 10 bronze medals but the Australian Olympic Committee (AOC) has stopped publicly setting a medal target for the Games.

"The AOC has talked about not setting medal targets and placing unhelpful expectations on these athletes," Australia's chef de mission Ian Chesterman said in a statement on Monday.

"Given the events of the past 18 months, this has been the correct path, getting to the start line has been so difficult.

"They don't need pressure from us."

Equestrian veteran Andrew Hoy will contest his eighth Olympics, a record for an Australian.

And fellow equestrian stalwart Mary Hanna and table tennis' Jian Fang Lay will compete at their sixth Games, a record for an Australian female.

Cyclist Cameron Meyer withdrew from the team for personal reasons at the weekend, when two changes were made to Australia's men's soccer team with Marco Tilio and Jay Rich-Baghuelou replacing Ramy Najjarine and Ruon Tongyik.

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Nick Kyrgios "knows he is welcome" at the Tokyo Olympics as the tennis star weighs up whether to be part of Australia's 472-strong Games team, which features a record number of women and Indigenous athletes.

Australia's contingent for the Games starting on July 23 includes 254 women and 218 men, with 16 Indigenous athletes.

The number of female athletes is 40 more than the nation's previous most at a Games, at the 2016 Rio Olympics.

And the 16 Indigenous athletes is four more than at the Sydney 2000 Olympics.

Australia's team is the second-largest to contest an away Olympics, 10 shy of the 482 athletes who went to the 2004 Athens Games.

But it remains doubtful whether Kyrgios, who last week was formally selected alongside Ash Barty and nine other tennis players by the Australian Olympic Committee (AOC), will make his Olympics debut.

"We'd still love to see Nick over at these Games. He knows he's welcome at these Games and I would still think it'd be a fantastic outcome for tennis and our team if he was there," Australia's chef de mission Ian Chesterman told reporters.

"But I understand and respect his decision, whichever way he goes.

"People have to believe they can perform under these different circumstances, so Nick will make his own decisions and we'll respect that.

"We have to acknowledge it's been a very difficult lead up for all athletes."

Chesterman's words are in sharp contrast to predecessor Kitty Chiller, who repeatedly clashed with Kyrgios during the lead up to Rio 2016.

Kyrgios is yet to make a decision but gave a strong hint at Wimbledon that he may not travel to Tokyo.

"If I'm to play the Olympics I want to do it the right way," Kyrgios said.

"With full crowds, with my guests there.

"When I'm able to watch other athletes do their thing. That's the Olympics for me. The Olympics, the way it's going to go on, is not the Olympics."

Australians will compete in 33 sports in Tokyo including all four new Olympic sports of karate, skateboarding, sport climbing and surfing.

At the Rio Games, Australia won eight gold, 11 silver and 10 bronze medals but the AOC has stopped publicly setting a medal target for the Games.

"The feedback from the Athletes' Commission was that it just wasn't helpful, athletes put enough pressure on themselves without us putting more pressure on," Chesterman said.

"Given the events of the past 18 months, this has been the correct path, getting to the start line has been so difficult.

"They don't need pressure from us."

Equestrian veteran Andrew Hoy will contest his eighth Olympics, a record for an Australian.

And fellow equestrian stalwart Mary Hanna and table tennis' Jian Fang Lay will compete at their sixth Games, a record for an Australian female.

Cyclist Cameron Meyer withdrew from the team for personal reasons at the weekend, when two changes were made to Australia's men's soccer team with Marco Tilio and Jay Rich-Baghuelou replacing Ramy Najjarine and Ruon Tongyik.

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Some 500 GPs across Australia will start rolling out the Pfizer jab to people aged between 40 and 59 this week.

Deputy Chief Medical Officer Michael Kidd says a further 800 GPs will come on board during July and August, including many Aboriginal community-controlled organisations.

He said over 8.2 million doses have now been administered in Australia, including five million does of AstraZeneca.

"These vaccines protect you and your family and the wider population against the risk of serious illness and death," Professor Kidd reminded reporters on Sunday.

More than 70 per cent of people aged over 70 years, more than 60 per cent of those aged over 60 years, and more than 50 per cent of people aged over 50 years have received at least their first dose of a COVID-19 vaccine.

"In addition, nearly 30 per cent of those aged over 16 years have had at least one dose of a COVID-19 vaccine," Prof Kidd said.

However, there is still no exact timetable for when under-40s can get the recommended Pfizer vaccination.

Finance Minister Simon Birmingham said there will be a marked step up in availability of the Pfizer vaccine in the next few months, rising from around 300,000 doses a week now to about 600,000 doses a week, and further increases are forecast in September.

"There's not a fixed date that I can give you now," Senator Birmingham told ABC's Insiders program.

Victoria is already complaining that its Pfizer allocation is dwindling as NSW gets more to battle its unfolding virus outbreak.

NSW reported 16 locally acquired cases in the 24 hours to 8pm on Saturday, including three aged-care residents.

It follows the 35 cases reported the day before, taking total infections in the state since the start of the outbreak to 277.

Premier Gladys Berejiklian said the dip in case numbers was a good sign, but reiterated all people in Greater Sydney and surrounds must adhere to lockdown provisions, which will remain in place until at least Friday.

Queensland recorded a single local COVID-19 case overnight as residents in Brisbane and Moreton Bay ready for their first full day without a lockdown.

The state also recorded an additional case in hotel quarantine and acquired overseas.

Western Australia reported one new local case amid the first phase of interim post-lockdown restrictions in the Perth and Peel regions.

The man has been in quarantine since June 26 and doesn't represent any public health risk, WA Health Minister Roger Cook said.

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