Better to close the international border and cancel all inbound flights than seal off Auckland. This is only happening in Auckland because that's where the vast majority of inbound passengers arrive.
You could do that and orphan 40,000 Kiwis and residents. Genome shows it didn't come from the border as it doesnt match the other border infections genomes.
Not entirely correct. It doesn't match any *recorded* genome sequences from positive cases from MIQ facilities. As of a few weeks ago this data only existed for (my recollection from a media story) about 60% of total recorded cases in NZ since February.