Expenditure on public health activities aim to prevent illness and enhance current and future wellbeing and quality of life of a nation's population. This publication is the sixth in a series that reports expenditure on public health activities by governments in Australia. It provides detailed estimates of recurrent expenditure for financial year 2005-06 along with selected time series data back to 1999-00. The report summarises estimates of funding and recurrent expenditure from key health departments and agencies of the Australian Government and each State and Territory Government by nine public health activity categories.