New details about the coronavirus-infected Air New Zealand staffer have come to light as the Ministry of Health reports one more imported case.
The new case arrived in New Zealand from the UK via the UAE and Malaysia on November 14, testing positive at around day 12 of their stay in a managed isolation facility.
The person has since been transferred to the Jet Park Hotel, Auckland's quarantine facility.
No further community cases were reported.
There are now 60 active cases of COVID-19 in New Zealand - four of which are in the community, and 56 in MIQ.
On Wednesday laboratories processed another 9083 tests, bringing the total number completed to date to 1,252,601.
The latest on the Air New Zealand staffer case
The Ministry of Health has been working with Air New Zealand after the staff member tested positive for COVID-19 in Shanghai earlier this week.
Health officials are now able to reveal the results of its genome sequencing, which shows the infection has no known link to any other New Zealand cases.
"The lineage of this infection is not associated with any New Zealand cases that have been sequenced, indicating international exposure is most likely," the ministry said in a statement.
"Because this case was first reported in China, it is officially a case in China, not New Zealand - so while we are reporting on it, it does not enter into our official count of COVID-19 cases.
"The ministry continues to investigate how this most recent confirmed COVID-19 case was contracted. Although the source of the infection is still unknown, we are continuing to take precautionary actions within New Zealand."
The staffer's fellow crew members returned to New Zealand from Shanghai on a cargo-only flight on Wednesday morning.
They are all being monitored, isolated and tested, the ministry says.
"Further test samples from close contacts of the staff member have been processed rapidly, and nine results have been returned, all of which are negative," it said.
Meanwhile the Auckland Regional Public Health Service (ARPHS) is continuing to investigate locations of interest in Auckland, and any close contacts that have arisen from the staffer's visits.
Twelve close contacts have been identified as a result of these investigations.
