Here's how it went from a ship engineer in New Plymouth to Auckland's North Shore.
Health researchers from both countries swapped notes - and this is what they found.
It follows 18 Russian and Ukrainian fishermen testing positive in quarantine after arriving in NZ.
Kiwis have been urged to remain vigilant and get tested - but reduced access to CBACs is making that hard.
A vessel containing 21 close contacts of a COVID-19 positive man is anchored off the coast of Napier.
It comes after the shock infection of a port worker over the weekend.
It follows the announcement of a new case in the community on Sunday.
But cases coming through the border is the best-case scenario.
Michigan added 1791 new COVID-19 cases on Saturday.
People are allowed out, but cafes must stay closed.
She says the new case is an example of the Government's testing and tracing system working.
Collins refused to say whether the leaker would be named and shamed if found.
The case was announced less than a day after Labour won the general election.
A man who works in the ports has tested positive for the virus.
The one way travel bubble to Australia opened on Friday - and it's already been burst.
The one-way travel bubble opened on Friday.
A recent study found more than a third of the party's Facebook posts were wholly or partially false.
"No international halo is so shabby, or so fraudulent as that worn by the New Zealand Prime Minister."
Ongoing COVID-19 infections are having "detrimental" impacts on many people's lives, says the report.
The Prime Minister said she was "angry" at the group for restructuring while getting the subsidy.