Health workers are scrambling to respond to three new cases of Covid-19 in the community, with 31 close contacts also involved.
Two of the family of three left managed isolation in Christchurch and returned home to Auckland on the same flight as a positive case.
Another family member then joined them on a trip to Taupō where they joined 18 others from Bay of Plenty, Wellington, Christchurch and Hamilton.
Covid-19 modeller Shaun Hendy told Corin Dann he's reasonably confident the contact tracing team will come out on top.
