There are four new cases of Covid-19 at the border - including one historical case that arrived on December 9.
Two infected people arrived in Auckland from Australia on Monday, and another person arrived from Singapore on December 11.
Case details
The four new cases in Waikato include two in Te Kūiti, one in Ōtorohanga, and one case with location information yet to be confirmed.
Three of the new cases in the Bay of Plenty are linked to existing cases and interviews with the other three cases are ongoing.
The two new cases in Rotorua are household contacts of existing cases.
There is one new case reported in Taranaki, linked to the Eltham cluster. It is understood this case has been self-isolating during their infectious period, the Ministry said.
A case was tested and is currently located in the Tauranga area. This case has been officially transferred to Tairāwhiti's case numbers as they have a permanent Tairāwhiti address.
Meanwhile, the recent New Zealand returnee who self-discharged from Auckland's Middlemore Hospital on Monday, along with their child, has voluntarily returned to an MIQ facility.
The pair returned to MIQ on Tuesday night and have six days of their isolation still to complete.
Wellington case
A person who tested positive for Covid in Wellington was reported yesterday, sending shock waves across the region.
Lower Hutt mayor Campbell Barry said he understood the new locations of interest would be unnerving for people, especially for those finishing their Christmas shopping.
"It's clear we have Covid in our community in Lower Hutt and that will be unsettling for a lot of people, but we are prepared for this and have worked really hard to get high vaccination rates across Hutt Valley."
The person was self-isolating, and interviews had identified a small number of household contacts, who were also isolating and with testing arranged for them.
Stores in Upper Hutt, Lower Hutt and Naenae were the first locations of interest to be announced in the Wellington region since the Auckland border opened.
Omicron
With more Omicron cases knocking on New Zealand's door, the Government on Tuesday introduced a suite of measures to keep the variant out of the country.
In Australia, New South Wales today reported a record 5715 new cases of Covid-19 as the new strain sweeps the state.
With the NSW outbreak expected to grow, Covid-19 Response Minister Chris Hipkins said it was too high risk to open the border in mid-January as planned.
In pushing back that reopening date to the end of February, Hipkins said he was "sorry" not to meet the original deadline but that Covid continued to throw up more challenges for governments around the world.
Cabinet also agreed to reduce the interval between the second dose and the booster shot from 6 months to 4 months, starting in January.
Around 3 million NZers will be due for their booster by the end of February, and by then the country will be better protected against Omicron, Hipkins said.
People can book in for their booster shots from late January. Those who are harder reach, including Maori, will be able to get their booster before winter hits, he said.
Hipkins said there will be enough boosters for everyone. Given the experience in the rollout thus far, there needed to be a stronger focus on people in remote communities.
People who have been fully vaccinated can still contract Covid and get sick, Hipkins said, and that's why booster shots were "all the more important" to reduce the risk of severe illness.