NSW Health says they were notified of the locally acquired case late last night and urgent contact tracing and genome sequencing is underway.
The quarantine worker was working at two separate hotels.
The new infection breaks NSW’s 55-day streak with no locally acquired cases.
Prime Minister Scott Morrison downplayed any alarm surrounding the case, stating he was not disturbed and vaccinations were not immediately effective.
“I’m not surprised by it, because you would expect these things to happen on the odd occasion.
Deputy Chief Medical Officer Paul Kelly said the jab was not a “silver bullet” that provided a quick fix.
Professor Kelly added there was a time lag between receiving the jab and it taking affect.
Aside from the hotel quarantine worker, NSW recorded no new locally acquired cases of COVID-19 in the 24 hours to 8pm last night.
The new case in NSW comes after a doctor at Brisbane’s Princess Alexandra Hospital tested positive.
Queensland today recorded one new local case of COVID-19, however it is believed to be an historic case.
NSW Health is asking any NSW residents who attended any of these venues during the relevant times is asked to immediately self-isolate.