From 1 July 2011, Prevenar 13® (a 13-valent conjugate vaccine) replaced Prevenar® (a 7-valent conjugate vaccine) on the National Immunisation Program in all states and territories except the Northern Territory. From 1 October 2011 the Northern Territory will replace Synflorix® (a 10-valent conjugate vaccine) with Prevenar 13®.