Is New Zealand prepared for a potential bird flu infection?

A highly contagious and deadly bird flu is currently sweeping the world - so does New Zealand need to be better prepared for its potential arrival? While New Zealand is seen as being at a low risk of having bird flu arrive on our shores there is a concern the thousands of migratory birds which arrive here each year might bring it with them. Nigel French professor of infectious disease epidemiology and public health at Massey University joins Nights to explain what we can do to be better prepared.