This figure shows all notified cases of IPD caused by the six additional serotypes targeted by the 13vPCV that is excluding 7vPCV serotypes, in children aged less than 5 years in Australia between 2003 and the fourth quarter of 2014 by quarter and individual serotype causing disease. The figure demonstrates that quarterly notified cases of the selected serotypes increased steadily over the period 2007 to 2011, particularly those caused by serotype 19A, with a reduction since the 13vPCV replaced the 7vPCV in the universal childhood immunisation in July 2011.