"We also know that a booster dose with Pfizer provides better protection against the Omicron variant than the two-dose course.
"While two doses provide some degree of protection against severe disease from Omicron, a third dose is likely to offer greater protection against transmitting Covid-19 to others and reduce the chance of more serious infections."
Dr Bloomfield said speeding up the booster rollout was a key part of the country's response to Omicron.
"The shorter interval means more than 82 per cent of vaccinated New Zealanders will be eligible for a booster by the end of February 2022.
"More than 326,000 people who were vaccinated in the early part of the rollout have already had their booster doses, which is more than 70 per cent of those who were eligible in 2021."
Dr Bloomfield has urged everyone who is eligible to get their booster as soon as possible to protect themselves, their whānau and the wider community.
Vaccination providers and staff across the country are working through the holiday season and the Auckland Airport Park and Ride drive-through vaccination centre has reopened today. The Park and Ride - which is operating from 10am-5pm with no appointment needed - can vaccinate more than 4000 people a day.
Dr Bloomfield said the coronavirus was continuing to create new challenges.
"I want to thank all the healthcare workers who continue to go above and beyond to respond to these challenges and keep our communities safe, particularly those working over the holidays.
"Our vaccination teams had a huge 2021 and did an outstanding job. They deserved as much of a break over Christmas and the New Year as is possible - and our heartfelt thanks.
"From next week, that work starts again."
The Ministry of Health is not releasing any data on Covid-19 infections in New Zealand today.
- RNZ
