Figure 4 - This figure shows notifications of IPD in non-Indigenous Australians aged 65 years or older in Australia between 2002 and the first quarter of 2013 by quarter and the serotype causing disease, grouped according to targeted vaccines. The figure demonstrates that quarterly notifications have increased slightly in this group. Approximately half of the notifications received in a quarter are caused by serotypes targeted by the 23vPPV, excluding the 7vPCV serotypes.