This figure shows all notified cases of IPD in non-Indigenous Australians aged 65 years or older in Australia between 2007 and 2016 by quarter and the serotype causing disease, grouped according to targeted vaccines. The figure demonstrates the burden of disease in this population group has increased in 2016, with non-vaccine serotypes associated with most notified cases. Disease due to serotypes targeted by the 13vPCV has reduced substantially in this population group likely due to herd immunity impacts from the childhood immunisation program.