Regarding todays new cases I suspect they are one of the 2 families that the delayed positive in Auckland had contact with after they left MIQ.
I seem to recall MoH stating that this contacts family had only been in touch with 2 other families.
Recently the MoH made noises that they are testing contacts of contacts as routine so hopefully they are getting ahead of this last case.
I do hope that no one on the flight back to Auckland tests positive considering they have just relaxed spacing on planes.
Good on air NZ for making everyone wear masks still!