Four cases of Covid-19 have been discovered in managed isolation facilities, one of them a historical case, the Health Ministry says.
In a statement, the ministry said there were no new cases in the community.
It said all but one of the air crew who flew with the Air NZ staff member who tested positive on Sunday had since returned negative results.
Genome sequencing had found the case was not a variant of concern, such the more infectious strains first identified in UK and South Africa.
More than half the person's remaining contacts returned negative tests and all 35 contacts from the vaccination centre had been contacted and given public health advice.
The crew member was taken to a quarantine facility, and had limited contact with others when they were considered infectious during alert level 3 in Auckland.
The ministry said the number of QR code scans had fallen by more than 450,000 scans, with just 979,598 scans on the app yesterday. It urged people to continue to scan in and turn on the app's bluetooth function.
The total of active cases in New Zealand is 79, and total confirmed cases is 2409. Laboratories processed 3526 tests yesterday, bringing the seven-day rolling average to 9399 tests.
The three infectious cases of Covid-19 in MIQ arrived from India via UAE, two on 6 March and one on 7 March.
The historical case arrived from UK via Qatar and was not considered infectious.
Yesterday the ministry reported five new cases in managed isolation and no new community cases.
Prime Minister Jacinda Ardern later announced the government had made a deal to buy another 8.5 million doses of the Pfizer/BioNTech vaccine, enough to immunise every New Zealander with two doses and ensuring a simpler, more equitable mass vaccination campaign.