Officials advise that anyone who has visited the Avalon Woolworths between the specified times from Jan. 2 to Jan. 6 should get tested and self-isolate until a negative result is received.
Anyone who has visited the Chemist Warehouse in Avalon on Sunday, Jan. 3 between 1 p.m. and 1:15 p.m. must also undergo the same procedures.
The alert comes after a man who tested positive had visited these venues after the initial cut-off of the northern beaches.
Chief Health Officer Dr. Kerry Chant said the man only experienced symptoms after he had finished his initial quarantine from returning overseas.
NSW Health advises testing for “even the mildest symptoms, such as headache, fatigue, cough, sore throat or runny nose.”
Although the man has been quarantined, officials cannot confirm if his infection is directly linked to the Avalon cluster which currently involves 149 infected individuals.
It is speculated that there were other opportunities through which it was possible that he had been infected.
The Thursday report by NSW announced that out of the nearly 28,000 people tested there had been no new local cases of COVID-19 in the 24 hours leading up to Wednesday at 8 p.m.
The last recorded zero new local cases for NSW was on Monday.
Restrictions are expected to be lifted on Saturday for suburbs north of Narrabeen Bridge after stay-at-home orders were issued since before Christmas.
The restrictions which includes a $200 fine for failing to wear a mask in specified areas will be reassessed on Saturday before they are lifted.
Although the Australia-India Test on Friday will go forward with a mask mandate for all attendees, the residents of the northern beaches will unfortunately not be permitted to attend.
AAP contributed to this article.