Queensland will reassess its border restrictions with NSW after the southern state said it would scrap mandatory quarantine for vaccinated international travellers.
Premier Annastacia Palaszczuk is yet to be briefed on the NSW plan, but quickly issued a statement saying "the safety of Queenslanders remains the government's highest priority".
Chief Health Officer Jeannette Young said Queensland's border settings would be reassessed but it was far too soon to say what, if anything, might change.
"I need to go and work out what that change means, and it's not just a change that will impact on NSW. Opening the borders to NSW then leads to a flow on to every other state," she told reporters on Friday.
The prime minister has sought to reassure other states and territories about the shift in NSW.
Scott Morrison says he had advised other leaders there had been no federal government decision to throw open the borders to everyone.
At this stage, the NSW arrangements will be limited to citizens, permanent residents and their immediate families.
"It is about Australian residents and citizens, full stop," he said.
Queensland Health Minister Yvette D'Ath said the NSW announcement made it even more critical for unvaccinated people to go and get their jabs.
She said 71.4 per cent of eligible Queenslanders had had one vaccine dose, and 54.8 per cent were fully vaccinated.
Queensland is yet to set a date or vaccination threshold for opening its borders, but has been hinting in recent weeks that it might be aiming for about the end of November or early December.
Ms D'Ath said more people needed to get vaccinated before the government released a formal border roadmap.
"We can't talk about the plan forward and opening up if Queenslanders aren't coming out and getting vaccinated in big numbers," she said.
Meanwhile, Dr Young indicated a trial of home quarantine, which started on Monday, would be extended to people other than Queensland residents.
There are 800 people trialling the scheme, but people in the process of moving to the state have been excluded.
"So then the intent was always to see how that went, and how we could safely expand it to other groups," Dr Young said.
"Of course it's critical, yes, so we're working as quickly as we can, but the most important thing people can do to support those new arrivals coming into Queensland, and Queenslanders are always so supportive of new people coming, is to get vaccinated."
Queensland reported two new interstate-acquired cases of COVID-19 on Friday, which will be recorded in other states' numbers.
One is a flight crew member who tested positive on entry into hotel quarantine before flying on to Papua New Guinea.
The other is a fully vaccinated truck driver who was contacted while driving into the state from Victoria, via NSW, but wasn't infectious in the community.
Dr Young said the cases posed "no risk at all" to the community.
Australian Associated Press