Over the past 10 days, the total number of recorded coronavirus cases in the territory has almost doubled.

Prior to the current outbreak, there had only been 124 cases recorded in Canberra.

Here's where the ACT stands.

There were 19 new cases reported on Sunday, which is up from eight reported on the day before.

However, this jump was foreshadowed after the ACT changed its reporting period. The ACT's daily update now only includes cases reported up to 8pm the day before, to allow for contact tracers to know if cases were active in the community. Previously, the reporting cut-off was 9am.

ACT chief health officer Dr Kerryn Coleman said the new cut-off time made the territory's case numbers appear "artificially low" on Saturday.

Chief Minister Andrew Barr said the goal was to ensure all new cases were not infectious in the community.

"It does reflect the situation that we face, that there will still be new cases in the days ahead and what we are striving for is that all of those new cases are not infectious in the community," Mr Barr said.

Of the 19 cases reported on Sunday there were six infectious in the community.

Over the weekend, wait times at the ACT's COVID-19 testing sites were significantly down.

ACT Health's social media channels indicated the longest wait at any one testing site on the weekend was 30 minutes.

But testing numbers were also down over the weekend. There were 3640 tests carried out on Saturday, less than half the daily numbers seen earlier in the week.

Dr Coleman said testing demand would fluctuate.

"There will certainly be a wax and wane to the demand of testing," she said.

"We do need to maintain those really high levels of testing to enable us to detect any of those undiagnosed or undetected chains of transmission."

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However, Dr Coleman said there would be increased demand in the coming days, particularly as people prepared to exit quarantine.

"We're working very hard to try and workout where our surges will come from based on the size of cohorts in quarantine that we know about," she said.

There are currently 15,400 close contacts associated with ACT exposure sites in quarantine.

There are now more than 320 close and casual contact exposure locations in the ACT.

Several supermarkets were listed as casual contact sites on Sunday, most with exposure dates after the lockdown.

Health authorities are also investigating a possible exposure site at the Condamine Court public housing complex in Turner.

A student from the Australian National University has also tested positive.

The student is from Warrumbul Lodge but had been in isolation in a self-contained unit for the duration of the ACT lockdown. There are no exposure sites at ANU as of Sunday night.

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