Dr Ashley Bloomfield has revealed the vast majority of Aoteroa's COVID-19 cases are unvaccinated.
The Director-General of Health told media on Tuesday the data shows the Pfizer vaccine is effective even against the more infectious Delta variant.
He says only a tiny percent of fully vaccinated people have caught the virus.
"There have been 1185 cases to date of which 260 are children under 12 so are not yet eligible to be vaccinated.
"Of the 925 people who are eligible to be vaccinated 718 or 78 percent have had no vaccinations, whilst just 38 or 4 percent were fully immunised - that is they had had their second vaccine at least 2 weeks before becoming a case.
"The remainder had had just one dose, that's 150 or a second dose less than 14 days before they were infected - there's just 17 people in that group."
Bloomfield said the data shows how effective the jab is and urged eligible Kiwis to get vaccinated.
He said the number of children who have caught the virus shows how important it is for people to get vaccinated to protect those who can't.
"Those 260 children who have become cases in this outbreak is significant given that they are not yet eligible to be vaccinated- it is up to the rest of us to protect them," he said.
Bloomfield said data from Aotearoa and around the world shows the vaccine is effective at protecting not just the person who gets it but also those around them.
It comes as eight new community COVID-19 cases were announced on Tuesday down from 12 the previous day. Seven of the eight cases are known contacts of existing cases. There are now only three active sub-clusters, down from four.
One of today's new cases was confirmed after a person presented at Waitakere Hospital's emergency department last night. This case is not epidemiologically linked.
Five staffers have been stood down as a precaution. Eight hospitalised patients who were in the vicinity of the case are also being treated as contacts and isolated appropriately.
There are 14 people in the hospital with the virus and three in ICU.
