Flu shots (or jabs) are free to everyone this year.
Dr Alistair Humphrey has recommended that everyone get be vaccinated as soon as possible for two importnat reasons. The first is that with more crowded conditions (homes and schools)the possibility of infections spreading is much greater. The second relates to avoiding pressure on hospital beds whcih are already under strain.
The Christchurch Star has an article on this in the April 2 edition (p. 4) and it can be found on their web site here.
NOTE: this report has turned out to be incorrect. Follow the link here to the correct information.