Sydney has recorded seven new COVID-19 cases, while passengers on a regional flight and people lining up for Santa photos in the CBD are among the latest groups to be placed on alert.
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Passengers on flight ZL6469 from Sydney to Griffith, in NSW's Riverina region, departing at 2.10pm on Monday are considered close contacts of a coronavirus case.
They are being urged to get tested at a new pop-up site in the city and isolate for 14 days, even if the result is negative.
A Santa photo set-up on level three of Sydney's QVB building is also among the latest exposure sites.
Anyone who attended between 10.15 and 11am on Wednesday should monitor for symptoms, and get tested and isolate if they appear.
NSW Premier Gladys Berejiklian has pleaded with people to think twice before heading to Boxing Day sales.
It came as many Sydneysiders had a quieter than usual Christmases because of restrictions on family gatherings.
"I do not think anybody is having a normal Christmas today across NSW," Ms Berejiklian said.
Seven new locally acquired cases were recorded in the state from nearly 70,000 tests.
They were all connected to the northern beaches and six were already isolating.
Four infections were linked to the Avalon cluster, bringing its case total to 108.
Another two cases live with a someone who previously tested positive.
The seventh new case works in the northern beaches, but the source of infection remains under investigation.
A child also tested positive on Thursday night and their case will be included in Saturday's numbers.
Sydney's latest exposure sites include the Auburn Redyard Entertainment Centre, as well Cafe Bodrum, and Chicago Jones Coffee and Chocolate Maison, also in the same suburb.
Additional exposure sites are: Westfield Burwood's Hipster Clothing Store, Chippendale's Central Park Food Court, Anytime Fitness Belrose, Oliver Brown at Crows News, Star Nails at Rose Bay and Glebe's Sappho Books, Cafe and Bar.
The 200, 431, 324 and 325 bus routes are also on the list.
Anyone with even mild symptoms was urged to get tested rather than potentially exposing their relatives to risk over Christmas and New Year.
The premier thanked health workers and pathologists working through the night to deliver test results.
A man who worked at Belrose was earlier this week discovered to have had the virus around December 10, before the outbreak emerged.
He does not appear to have transmitted it to anyone.
People who have been in Belrose and Davidson should be on alert for symptoms.
The warning comes as Sydneysiders who are not from the northern beaches can again travel to the Northern Territory.
It became the first state or territory to open to greater Sydney since the latest cluster emerged.
Australian Associated Press