There are 11 new cases of Covid-19 cases – all from managed isolation. There are no new cases in the community.

Five of these cases are part of the day 6 testing of international fishing crew in Christchurch.

Of today's other cases detected in managed isolation, one involves a family group of two people who arrived from Amsterdam via Singapore. The other cases involve two recent arrivals from the United Kingdom and one who arrived from the United Arab Emirates.

All six cases have returned positive tests at around day 3, as part of our standard border testing protocols and they are now in quarantine.

Yesterday's cases

Eight cases were detected in managed isolation facilities, seven of which involve the fishing crew at the Christchurch facility.

The other case in managed isolation arrived from Iran via Dubai on October 19. They tested positive on day three and are now in the Auckland quarantine facility.

Director general of health Dr Ashley Bloomfield. Photo / Mark Mitchell

Elsewhere, the United States have set a new record for the highest number of new Covid-19 infections in a single-day.

America reported 77,640 new cases on Thursday, according to NBC News, surpassing its previous record of 75,723 set on July 29.

It also recorded another 921 deaths, bringing the total death toll to more than 220,000.

Director general of health Ashley Bloomfield said yesterday he was feeling comfortable that level 1 was the right setting and the Auckland cluster is well-contained.

Health Minister Chris Hipkins said at this point the cluster wasn't causing him heightened levels of anxiety "just usual levels of anxiety".

There would be a "very intensive" campaign over the next 72 hours to encourage the public to use the app.

"The more we scan, the safer we'll be," Bloomfield said.