Queensland has recorded zero new local COVID-19 cases as the state government advises against any travel into NSW.
Premier Annastacia Palaszczuk warned, however, that the 143-strong Indooroopilly cluster was unlikely to have fully exhausted itself.
“We are not out of the woods yet – if you have any symptoms, please go and get a test, that’s critical,” Ms Palaszczuk said on Sunday.
One COVID-19 case was uncovered in hotel quarantine.
Ms Palaszczuk said she was “very concerned” about the detection of COVID-19 cases in regional NSW, including in the state’s north.
On Saturday afternoon, NSW locked down all of its regional areas for at least seven days.
“Because all of NSW is in a lockdown position, there should be very minimal movement over that border,” Ms Palaszczuk said.
“This is probably the tightest our border controls have been put in place, they are very strict … we are checking people and of course there’s very minimal reason for that movement.
“It’s only if you’re an essential worker and we’ll be checking freight.”
Deputy chief health officer James Smith advised everyone in south-east Queensland, especially on the Gold Coast, to wear masks.
Queensland had six new local cases on Saturday, including a one-year-old child who is in hospital.
Authorities said the infant case, the youngest in the current cluster, showed how easily the Delta strain of the virus infected children.