COVID-19 infections have surged in NSW with 804 new cases and one death, as a cluster in Newcastle spreads, forcing more people into isolation.
The new tally is an increase of 268 on the previous day, as NSW Health battles to contain several large transmission events.
Some 86,562 tests were recorded in the 24 hours to 8pm on Monday.
The double-dose vaccination rate of those 16 and older is 93.2 per cent, while 94.8 per cent of people have had their first jab.
There are 168 people are in hospital with the virus, 21 of them in intensive care.
Some 81.4 per cent of children aged 12-15 have had one dose of a COVID-19 vaccine, while 77.7 per cent are fully jabbed.
Meanwhile, NSW Health says anyone who was at Newcastle's Finnegan's Hotel in the state's Hunter region between 6.30pm on Friday and 2.30am on Saturday is advised to get tested and self-isolate for seven days.
"All household contacts of close contacts must also be tested and self-isolate until a negative result is received by everyone in the household," NSW Health said on Monday night.
"It is likely some of these cases have the Omicron variant of concern."
NSW Health is appealing for anyone who didn't check in using the QR code to also get tested and self-isolate.
The latest alert comes after cases linked to an outbreak that started at Newcastle's Argyle House nightclub on Wednesday spiked from 24 to 84 on Monday, with a number of the cases also likely to be the Omicron variant.
Nearly 700 people checked into the venue and Chief Health Officer Kerry Chant said it was "incredibly important" that anyone who was at the venue had a test, "given the high transmission at this venue".
From Wednesday, unvaccinated people in NSW will be free to mingle with everyone at pubs, cafes, gyms and shops as a swathe of restrictions are lifted.
Density limits will be scrapped at venues and masks will no longer be mandatory in shops but will be required on public transport and planes as well as for indoors front-of-house unvaccinated hospitality staff.
Check-ins will only be required in high-risk settings like hospitals, pubs, clubs and gyms and singing and dancing will be permitted indoors and outdoors for everyone.
NSW Premier Dominic Perrottet is calling for calm, saying Omicron "was always going to get here". The following applies to all people, from tomorrow, regardless of vaccination status:
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