This compendium outlines the findings of the 20 projects under the National Hendra Virus Research Program; the collaborative effort leading to a better understanding of Hendra virus. This understanding will lead to improved management of flying foxes and horses when selecting strategies to mitigate the risk of Hendra virus infection in Australia. Eight of these projects were managed by the Rural Industries Research and Development Corporation, eight were managed by the NHMRC, and the remaining four by the Queensland and the New South Wales State Governments.