The NSW Chief Health Officer has cited a worrying trend as coronavirus cases in the state continue to soar.
The state reported 112 community-transmitted cases of coronavirus on Monday, the highest spike since the beginning of the latest Sydney outbreak.
Dr Kerry Chant told reporters on Monday she wanted to highlight young adults, aged between 18-20, spreading the virus in parts of Sydney's south including Georges River, Bayside and Sutherland LGAs.
"They are largely spreading it again," Dr Chant said.
"To echo the premier's words, to their closest friends and family – it is crucial that young adults limit their social interactions at this time and also come forward for testing."
The NSW Government has tried to reinforce the message coronavirus does not just affect the elderly.
There are 63 people with coronavirus in NSW hospitals. Of those 63, 25 are under the age of 55 and 14 under the age of 35. One patient in the intensive care unit is in their 20s.
The 'critical' number that will keep NSW in lockdown
NSW Premier Gladys Berejiklian said at least 34 of Monday's 112 positive cases were infectious while in the community.
"Can I stress that is the number that we need to see go down to as close to zero as possible before we can get advice from health to say the lockdown can end," she said.
"It is critical, that is something all of us have a role to play in, all of us have to make sure that if anyone has symptoms, get tested and stay at home."
At this stage, lockdown is due to end on Friday.
But the premier said on Sunday it could go past Friday if case numbers remain high.
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