He had edited two previous volumes, Empires of Panic: Epidemics and Colonial Anxieties (Hong Kong: University Press, 2014) and Disease and Crime: A History of Social Pathologies and the New Politics of Health (New York: Routledge: 2014). He also is co-editer, with David M. Pomfret, of Imperial Contagions: Medicine, Hygiene, and Cultures of Planning in Asia (Hong Kong: University of Hong Kong Press, 2014), as well as the author of a rich body of articles on Asian history and the history of medicine.