The ACT has notched up a record 30 new daily coronavirus cases as its outbreak grows to 167 infections.
An unvaccinated woman aged in her 40s is in intensive, while three other patients remain in hospital.
One of the ACT's latest cases is a support service worker from the University of Canberra Hospital.
An outbreak among the territory's disability sector has grown to 17 with two more support workers diagnosed.
A second case has been linked to the Condamine Court public housing complex at Turner.
Of Tuesday's 30 new infections, 21 are household contacts of existing cases.
Another four cases can be traced back to clusters, while five more are yet to be linked.
Eleven people had been in the community and 13 in isolation while infectious.
The quarantine status of six other cases remains unclear.
It's too early for Chief Minister Andrew Barr to say whether Canberra's three-week lockdown will extend beyond September 2.
"This case number today will cause concern. It is a record day of cases for the ACT," he told reporters.
"We're going to have days like this where, at (a) household level, initial infection will spread to other members."
Around 700 healthcare workers remain in isolation or quarantine as Canberra's list of exposure locations surpasses 400.
More than 12,400 people are close contacts, while there are 6100 casual contacts.
The ACT government is waiting on additional Pfizer doses for under-30s.
It has stressed AstraZeneca is available for people wanting a jab now.
