A lawyer says a sick baby whose parents want him to only be treated with blood from unvaccinated people is getting sicker with every heartbeat.
Te Whatu Ora Health NZ has gone to court to ask for guardianship of the four month old baby - so doctors can treat him.
But his parents are adamant they don't want that to happen if it involves blood from a vaccinated person.
Our health correspondent Rowan Quinn and camera operator Marika Khabazi have the story.
Rebecca Keenan is a medical lawyer at Liberty Law and is former nurse. She talks to Lisa Owen.