Roy MacLeod is Emeritus Professor of History at the University of Sydney. He writes in the social history of science, technology and exploration in Australasia and the Pacific. His early work focused on the history of vaccination and epidemic disease, and he taught imperial and global medical and military history at Sydney for many years. His current work studies the changing dimensions of science, medicine and technology in global geopolitics and cooperation in Space.

Milton Lewis was Honorary Senior Research Fellow in the Menzies Centre for Health Policy, University of Sydney. He has had a long- term interest in how history can contribute to better understanding of health problems and policy. His last three books have focussed on the impact of globalisation on the health of the peoples of the diverse polities, economies, societies and cultures of Asia and the Pacific.