NSW reported 14 new cases of COVID-19 on Monday morning, with the majority linked to outbreaks in Sydney schools or childcare centres.
One of the new cases has not been linked to any other sources, while one is from an overseas traveller in quarantine and one is from an interstate traveller from Victoria.
The remaining 11 are linked to known clusters, with five - four students and one close contact - of these related to the growing outbreak at the Tangara School for Girls.
This morning, NSW Chief Health Officer Kerry Chant said another teacher and student had tested positive and will be counted in tomorrow's numbers.
There are now nine people, including six students, in the school's cluster; the original source of the cluster is unknown.
There were also new cases at Bonnyrigg Heights Public School, the Kids Early Learning Quakers Hill long day care and Our Lady of Mercy College in Parramatta.
The final three cases reported today are linked to funeral events in Bankstown, with 63 cases now linked to this cluster.
There were more than 50,000 tests conducted over the weekend, Dr Chant said.
She said she was grateful for those who had come forward, but warned that the community must continue to play its role in stopping the spread of the virus in NSW.
She reminded people that this included staying 1.5 metres away from colleagues or when out and about, wearing masks when they can't socially distance, practising hand hygiene and not going to work when they are sick.
Additionally, she asked people to curtail their social activities during the "critical stage of the virus".
"If you have acted in that way you are less likely to affect multiple people [if you have coronavirus]," she said.
"You can see how many cases have originated and how many chains of transition have originated from that one event [at the Crossroads Hotel in Casula].
"What I am concerned about is that there may be cases we didn't detect."
Premier Gladys Berejiklian said NSW was still in "a state of very high alert".
"We are doing OK, we are holding the line, but we are at least half way through a critical phase," she said.
We ask people to curtail their activity. It's very difficult, when people have attended a number of venues in one night, for contract tracers to do their work.
"Please consider your own actions and what you're doing."
Meanwhile, in Victoria there's been good and bad news with the daily numbers, with the state reporting 19 new deaths in the past 24 hours, which makes it the deadliest day since the start of the pandemic.
However Victoria's daily case numbers dropped to 322, a significant turn around from last weeks numbers in the 700s and a sign the state's strict lockdown measures may be starting to work.