There were no new locally acquired cases of COVID-19 for the fourth day in a row, but four new cases in hotel quarantine, NSW Health said on Wednesday.
The four new cases in returning travellers puts the total number of infections in the state at 4,289.
There is a continuing alert for immediate testing for anyone with symptoms who lives in the Southern Highlands, south western Sydney and the Rouse Hill area.
That plea by NSW Health follows recent positive cases in Moss Vale and Sydney’s south west, and the detected presence of virus fragments in sewage samples in Rouse Hill and Liverpool.
As Sydney’s virus numbers remain low compared with the height of the pandemic, the state is preparing to open borders with Victoria.
Sydneysiders are however still not allowed to visit Queensland – and this week there was speculation that state could open up borders to Victoria before the Sydney ban is lifted.
“I’m just mortified by that notion,” Ms Berejiklian told the Today show on Wednesday.
“I think it’s cruel. I think it’s unjustified and I think it’s spiteful. And there’s no health or scientific basis to it.”
The new NSW figures came as a report said there was “very limited community transmission” of COVID-19 in Sydney during the pandemic’s first wave.
The study published in the Medical Journal of Australia on Wednesday was based on analysis of blood specimens collected between April and June from people who gave blood or had medical check-ups for other reasons than COVID-19 treatment.
Out of 5339 specimens, only 38 were positive, the researches from UNSW and elsewhere concluded.