New South Wales has recorded 10 new locally acquired cases of coronavirus in the past 24 hours after 28,000 people were tested.
Five of the new cases are linked directly to the Avalon cluster while three are from the Croydon cluster.
“Pleasingly we have seen the numbers go down today but it’s very volatile,” said NSW Premier Gladys Berejiklian.
One is a contact of a Sydney Airport transport worker while another is a man from western Sydney.
In response, South Australia authorities have announced a hard border closure will be imposed with NSW.
Premier Steven Marshall says the closure will apply from Friday with only returning SA residents, people permanently relocating to SA and essential travellers exempt from the new rules.
Returning residents or people relocating will still need to quarantine for 14 days.
Victoria is also dealing with its own virus crisis, with three new cases added to three reported late yesterday which ended its virus-free run.
In response to the outbreak, Sydneysiders, and those on the Central Coast, Blue Mountains and Wollongong, are only allowed to have five visitors over for the New Year’s Eve celebrations. Outdoor gatherings will be limited to 30 people.
Health minister Brad Hazzard slammed comments made by the WA Australia Medical Association president Dr Andrew Miller who said NSW was no longer the gold standard and a lockdown “wouldn’t be going too far”.
“If the (WA) AMA president has a particular view, I will leave that to him in WA. He must be an instant expert on what is happening here in NSW,” he said.
“I’m happy to just continue to work with our health authorities who have done a fantastic job.”
There were 18 cases on Wednesday, with nine of those linked to the northern beaches outbreak.
– with AAP and NCA Newswire