There are still three active cases in the state, but there are now zero cases of an unknown source that were infected between October 30 and November 12.

Today's announcement comes after 8,323 tests were processed in the past 24 hours.

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On Saturday, deputy chief health officer Professor Allen Cheng said keeping rules on mask-wearing in place could help in the decision on easing other restrictions.

"What we're trying to do is step through that cautiously and the order of that really depends on you know what's easy to do, what restrictions can be relaxed that will be relatively high impact and improve people's lives," he said.

"Masks, I think, still are things where you know everyone's got their masks now and people know what to do and by holding that back a little bit means that we can probably open up some of the other things earlier.

"The last step was six days ago so we want to make sure that when the time comes pretty soon, then we'll be able to relax some of the other settings again."