Figure 2 - This figure shows all notified cases of IPD in children aged less than 5 years in Australia between 2003 and the first quarter of 2014 by quarter and the vaccine serotype group causing disease. The figure demonstrates that quarterly notified cases have decreased significantly since the beginning of 2005, with disease caused by the 7vPCV extremely rare in recent quarters. Disease caused by the 6 additional serotypes targeted by the 13vPCV peaked from 2007 to 2011 and has steadily declined since 2012.