Three inner city Sydney gyms have been hit with Covid-19 alerts as concerns grow about renewed restrictions by Christmas.
South Eastern Sydney Local Health District said it was notified about 11 confirmed cases of the disease associated with Barry's Bootcamp at Kings Cross, Surry Hills and Martin Place.
People who attended the various "classes of concern" between October 30 and November 4 are being contacted by NSW Health.
Anyone who attended any of Barry's Bootcamp classes between those dates who hasn't been contacted by NSW Health should monitor for symptoms of Covid-19 and immediately get tested and isolate until a negative result.
Under the state's virus restrictions, gym classes are limited to just 20 people.
Victoria still has the highest daily case numbers of anywhere in the country with modelling by the Burnett Institute predicting a fresh peak of cases around Christmas.
Professor Tony Blakely, an epidemiologist and public health expert, believes tighter restrictions may be needed to "dab the brakes" on Covid spread around the holiday period.
"We don’t want to go into Christmas with case numbers at 2500, 3000, a day because Christmas will be a super spreader event and it would become very unpleasant in January," he told 3AW earlier this week.
Wednesday's Covid numbers
Victoria recorded 1,003 new locally-acquired cases of Covid-19 on Wednesday and a further 14 deaths.
The state has more than 15,000 active cases and is now 84 per cent fully vaccinated.
Meanwhile NSW recorded 217 new cases and three deaths this morning.
NSW reached the 90 per cent fully vaccinated threshold this week, with 94 per cent of the eligible population having had at least one dose.
As of Monday, 90.12 per cent of the state's population aged 16 or over were fully vaccinated – a milestone that was met with praise from state health authorities.
NSW Chief Health Officer Kerry Chant said "it's pleasing to see high rates of vaccination continue to inch upwards" as the state sets its sights on a 95 per cent full vaccination target.
The "lockout" of the state's unvaccinated residents ends when that milestone is reached, or by December 15 at the latest.
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