Two new COVID-19 exposure locations have also been announced.

Anyone who attended Erindale Healthcare in Wanniassa on November 24 between 10.35am and 11.40am is considered a casual contact.

People who visited court one at Southern Cross Basketball Stadium in Greenway on November 23 from 7pm to 8pm are also considered a casual contact.

The ACT reported seven new cases of COVID-19 in the 24 hours to 8pm, Sunday. There are now 154 active cases in the territory.

There are nine people in hospital because of COVID. Five of them are in intensive care, and four are being ventilated.

There were 1521 negative tests received in the 24 hours to 9am Sunday, a slight drop from Saturday's reporting which saw 1679 negative tests returned.

Meantime, the percentage of the eligible population who are now fully vaccinated has reached 97.7 per cent.

No positive cases for a new Omicron variant have been recorded in the territory so far, however, ACT Health has contacted "a small number" of people who may have been in one of nine southern African countries subject to restrictions.

In addition, the ACT will reintroduce stricter quarantine rules for international arrivals.

Testing numbers have climbed back up, after dropping to their lowest rates since the outbreak began at the end of October.

The seven-day rolling average of negative tests reported by ACT Health has risen from about 1400 a fortnight ago to 2289 on Monday.

NSW has recorded 150 COVID-19 cases and zero deaths as efforts ramp up to control a new variant in Sydney.

The new cases were diagnosed from 47,175 tests undertaken in the 24-hours to 8pm on Sunday.

There are 170 patients in hospital, 25 of them in ICU.

Some 94.5 per cent of people 16 and older have had one vaccine dose, while 92.4 per cent are fully jabbed.

Victoria has recorded another four deaths from COVID-19 and 1007 new cases, while the state hits its 90 per cent full vaccination milestone.

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