Immunisations for MMR (measles, mumps, rubella) and DTaP-IPV (diphtheria, tetanus, pertussis and polio) are given at 4 years old to help protect new entrants at school and limit the diseases coming home to younger children.

Read more about immunising your child or call 0800 IMMUNE (466 863) for more information.

An interesting link from Plunket
Here's something I read on the Plunket website I thought you might find interesting.
Please separate with commas.