The two people believed to be in the Crowne Plaza at the same time as the suspected source case have been tracked down.
Six people passed through the MIQ hotel's atrium when the person from New South Wales was also in there.
Officials are still investigating whether the Delta variant could have leaked into the community through the public passageway in the same building as the hotel.
Our reporter Nick Truebridge and cameraman Nick Monro went to see how the virus might have jumped from MIQ.
