Dr Chant said genome sequencing would be a crucial avenue of investigation to determine how the man caught the virus.
She said the man had a high viral load, suggesting he was potentially highly infectious, which was cause for concern.
“The next ring of testing around this case will actually tell us whether he’s passed it on,” she said.
Anyone who attended one of the listed venues at the times specified is asked to immediately get tested and isolate until NSW Health provides further information.
NSW Health said this applied to everyone, including those who may have been partially or fully vaccinated.
One of the man’s two immediate family members has returned a negative result, and results are pending for his other family member, NSW Health said.
NSW Health will be testing the man’s close contacts in an effort to identify undetected chains of transmission.
“In this case, we’re really interested in how this person acquired the infection to understand the broader risk in the community,” Dr Chant said.
NSW Health Minister Brad Hazzard said that even people in eastern Sydney who had received one or two doses of a COVID-19 vaccine must come forward for testing if they develop symptoms.
Ms Berejiklian said it was a reminder of the critical importance of QR codes, commending the man for aiding contact tracers by being “fussy” and consistently checking in to venues.
“This is a good wake-up call — we can never be complacent.”
Dr Chant added that it was disappointing to see initial results of only 100 people checking in to the Bondi Junction cinema on Friday, April 30.
“We need to go back to the management and understand, was that reasonable, was that [an] expected number? I’m also conscious that it was a Friday night, and there may well have been other people that may have not QR coded,” she said.
“If you do know someone has gone to that theatre, saw that movie, please just alert them to this.”
A new pop-up clinic has been established at Albion Street Centre Laverty Pathology in Surry Hills and will be open from 8am to 8pm from Monday to Friday, with weekend
hours of operation to be advised.
Existing clinics are also offering extended hours at Prince of Wales Hospital, St Vincent’s Hospital, Bondi Beach Drive-Through, Bondi Junction Laverty Pathology and Rose Bay Laverty Pathology.