Data modellers believe half of all New Zealanders could be infected with Omicron within four months.
The highly infectious Covid-19 variant is circulating in Auckland, and possibly in the Nelson Marlborough region, with experts saying it's days till it surfaces elsewhere.
Because of that they want boosters brought forward and a shorter gap between children's second vaccinations to protect as many people as possible.
Here's RNZ Health Correspondent Rowan Quinn.
