Families are being advised to be on measles alert as schools return on Monday.
Cases of the measles have climbed to 84 with almost half of them in Canterbury.
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There's been an increase in cases across Auckland over the past two weeks, now up to 27. Two of those are babies who became sick in the past week.
Overall 14 babies have contracted the disease this year, under the vaccination age of 15 months.
The best way to protect them is to ensure those around them are vaccinated. One person can potentially infect up to 15 others if they're not immune.
In Auckland alone health officials have followed up more than 1800 people who may have been exposed.
Holiday travel and public events can speed up transmission, so people who aren't immune are reminded to be aware of the symptoms and call your doctor if you think you've been exposed.
Newshub
