Queensland has recorded six new locally acquired cases, including a one-year-old infant who is currently in hospital.
The state's new cases are all linked to the Indooroopilly cluster with none infectious while in the community, bringing total cases in that cluster to 143.
The cases include the one-year-old sibling of an existing case and five adults connected to Brisbane Boys' Grammar School and Ironside State School.
Health Minister Yvette D'Ath said the one-year-old was in hospital in a stable condition.
She said the infant case, the youngest in the current cluster, showed how easily the Delta variant infected children.
Deputy Chief Health Officer James Smith said he hopes children under 12 will become eligible for the vaccine soon.
"There has been a significant proportion of children in this particular incident, as there has been around the world," he said.
"It would be wonderful to see children vaccinated and I hope that will come soon."
He said 8,000 people remain in quarantine on Saturday, down from 19,000 a few weeks ago.
"We wanted to extend our thanks to all of those families that have really done it pretty tough in quarantine," he said.
"It's not easy, it is a challenge."
The 14-day quarantine period is reset for any household with a new case, even if they have already been isolating.
Ms D'Ath said the Queensland government had been in discussions with NSW about whether further restrictions are needed for border communities like Tweed Heads.
There are health orders in place for anyone who's returned from the ACT, with people arriving in Queensland after 1am Saturday to spend a fortnight in hotel quarantine.
Those who returned from the capital territory on or after 9 August must immediately go into home quarantine and get tested.
One case was recorded in hotel quarantine, a four-year-old child who has arrived from Cambodia.
More than 22,000 people were tested and 15,158 vaccines administered on Friday.
