The other is a returned traveller in hotel quarantine.
It was announced on Wednesday that the two women had tested positive for coronavirus but had been going about their business in the community for eight days instead of quarantining.
Cowch restaurant owner Arif Memis told the ABC that five staff members who had indirect contact with the women were in isolation and awaiting test results.
"I know some of the pop-up clinics have been really busy, and some people have had to wait to be tested, and I thank you for your patience".More news: Rep. Gohmert tests positive for COVID before planned trip with Trump
Police Commissioner Katarina Carroll publicly lambasted the trio as having been "deceitful, deceptive and quite frankly criminal". She has tested negative to Covid-19.
"Unfortunately the second confirmed case has not wanted to let us know where she has been", Dr Young said.
"I want Queenslanders to really think about social distancing", she said.
The case sparked a 300 per cent spike in testing in Queensland with long queues pictured as anxious residents rushed to get themselves checked.More news: Dr. Fauci Wants Us To Wear Goggles Now Too: Here's Why
Queensland's deputy commissioner of police, Steve Gollschewski, said police were confident they had identified everyone who attended the Melbourne gathering.
"We are fairly comfortable that that's probably where he's got it but we will do contact tracing for him now as to who he might have come into contact with". They will all go towards the court, and charges will be formalised today.
It's also understood authorities are investigating whether the women had been at a party during their stay, broken up by authorities who discovered about 20 people gathered at a short-term rental in Melbourne's CBD and issued them fines equalling $30,000.
One of the teens is an employee at Parklands Christian College in Park Ridge, Brisbane. Most close contacts have been identified, contacted directly and provided with advice.More news: United States government to launch 'overwhelming' Covid-19 vaccine campaign by November
"The most important message is: Feeling sick?"