Emergency Pfizer vaccine supplies will not be rushed to Sydney's coronavirus hot spots from other states despite new cases peaking in its latest outbreak.
NSW Premier Gladys Berejiklian on Friday appealed for extra Pfizer doses to vaccinate younger people in the worst-affected suburbs.
The state's Chief Health Officer Kerry Chant declared the situation a national emergency after 136 new local cases were reported.
But Prime Minister Scott Morrison did not commit to an immediate Pfizer boost after a national cabinet meeting with state and territory leaders.
"Where there is potential to put more vaccines into New South Wales, even beyond what we are doing, of course we will seek to do that," he told reporters in Canberra.
"But we're not going to disrupt the vaccination program around the rest of the country."
NSW was given an additional 150,000 doses of Pfizer and the same amount of AstraZeneca earlier in the month as the disease began to grip Sydney.
Other states would have had to redirect highly sought-after Pfizer supplies to meet the premier's request.
Instead, the gap between Pfizer jabs will likely be extended from three weeks to six in a bid for more people to receive a first dose.
Mr Morrison denied the virus was out of control in Sydney.
"I have been treating COVID-19 as a national emergency for the last almost two years," he said.
"That hasn't changed in that entirety of the time we have been managing this pandemic."
He said suppression was the only way to defeat the virus with vaccination acting as wind behind the strategy.
Vaccine coordinator John Frewen said said immunisation was one response to outbreaks which could also be tackled through lockdowns, testing, tracing and social distancing.
"Throwing vaccine at one geographic area does not give an immediate solution," he told a Senate committee.
Ms Berejiklian earlier called for a national refocus of the vaccine rollout to stop the virus spreading to other states and continued lockdowns.
Stringent restrictions have been further tightened in the worst-affected areas of Sydney.
Victorian Premier Daniel Andrews wants NSW to go further with police and military patrolling containment lines around Australia's biggest city.
"Sydney is on fire with the virus," he said.
"We need a ring of steel around Sydney."
The prime minister said Ms Berejiklian had used the meeting to spell out how tough her state's lockdown was.
"There is nothing light about the lockdown in Sydney, I can assure you. My family are in it," Mr Morrison said.
While a record 196,430 doses were administered in the past 24 hours, just 15.4 per cent of the nation's population aged 16 and above have received both jabs.
AstraZeneca remains the preferred vaccine only for people aged 60 and over because of the risk of extremely rare blood clots.
The Australian Medical Association has joined Mr Morrison in calling for the expert immunisation panel to rethink the age advice.
Final approval for children aged between 12 and 15 to receive the Pfizer jab is expected to be given by the end of next week.
Pregnant women were overnight added as a priority group for vaccination.
Victoria recorded 14 new locally acquired cases in the 24 hours to Friday, raising hopes restrictions could be eased next week.
South Australia, which is also in lockdown, reported one new case.
Queensland is on alert after a flight attendant with the virus crewed flights around the state and also visited the Dreamworld theme park.
