Excluding unimmunised children 'common sense' - Northland principal

Northland schools face a massive headache with health officials calling for hundreds of unimmunised children to be banned from the region's schools for the next two weeks as they try to limit the risk of a major measles outbreak. The president of the Tai Tokerau Principals' Association says it's not even clear how many of the students at his school in Whangarei aren't vaccinated as not all parents have provided immunisation records. The Northland DHB says immunisation rates in Northland are some of the lowest in the country and there is no herd immunity. In the last few weeks the region has confirmed its first two cases of the virus. Pat Newman talks to Corin Dann.