Auckland is being gripped by a measles outbreak showing no sign of slowing down

It's been confirmed a student at Pukekohe High School has the disease, and the school didn't have enough immunised staff to stay open for classes today.

Auckland Regional Public Health Service's Dr Maria Pointer says most of the country's cases are in south Auckland.

She says at the start of the year they were seeing just a few measles cases a week - and now 15 to 20 people are turning up with the disease every week.