There are 24 new community cases of Covid-19, including one case of the Omicron variant which was announced yesterday but added to today's count.
Photo: RNZ / Nate McKinnon
In a statement, the Ministry of Health said the MIQ worker's household contact who returned a positive test yesterday is isolating at home.
Two other household contacts are symptomatic but returned negative tests yesterday.
The border worker's co-worker who is symptomatic remains in MIQ and has returned a further negative test.
The ministry said a further 15 contacts among the Stamford Plaza managed isolation staff were currently isolating at home as contacts of the border case and their co-worker.
"The border worker's whole genome sequencing links them to a person who arrived in New Zealand on a flight that landed on 8 January and tested positive on day 3 (13 January) of their stay at the Stamford Plaza.
"As of this morning, a total of 84 contacts have been identified in relation to the MIQ border worker. At this stage, 79 have returned negative test results and one household contact has returned a positive result, who was reported yesterday. The number of contacts can fluctuate as further investigation rules them out.
"Of the contacts identified in relation to the two bus journeys, there are four contacts yet to be reached. Two of these contacts have returned a negative test."
The ministry also revealed an Auckland airport worker, who is double vaccinated and has had a booster dose, tested positive for Covid-19 yesterday.
"Whole genome sequencing for this case will be returned today however from an abundance of caution, the case is currently being managed as an Omicron case.
"This person was infectious from the 15 January, however they were not at work while infectious. The case has one household contact who has returned an initial negative test result."
The first of the locations of interest associated with this case are being published on the Ministry of Health website, it said.
Today there are 24 people in hospital - six in North Shore, 11 in Auckland, six in Middlemore and one in Tauranga. There are also two cases in ICU or HDU - one in Middlemore and one in Tauranga.
The ministry also provided an Omicron update, saying there had been 370 Omicron Covid-19 cases detected at the border since 1 December - and 32 of the Delta variant.
There were also 203 Covid-19 cases caught at the border that were still undergoing whole genome sequencing, the ministry said.
"The expectation is that the vast majority will be the Omicron variant."
Earlier today, two community cases in Hastings were found, taking the total number of active cases in the region to four.
Both cases are linked to Tu Step Fitness Class at the Ascende Global Church in Hastings.
On vaccinations, 13,028 child (paediatric) vaccine first doses were administered to 5 to 11-year-olds throughout the country yesterday.
Nearly 30,000 children in this age group in New Zealand now have greater protection against Covid-19, the ministry said.
On boosters, 8606 were administered, bringing the total to 828,215, which is 51 percent of those who are now due their booster.
Meanwhile a Cabinet meeting - the first this year - is set down for 4pm today and will canvass an array of matters relating to Covid-19 and changes to the traffic light settings across the country.
The government has postponed the next MIQ lottery due to an "unprecedented" number of Omicron cases coming into New Zealand.