Christopher Hamlin is a professor of history at the University of Notre Dame and Honorary Professor at the London School of Hygiene and Tropical Medicine. He is the author of “The History and Development of Public Health in Developed Countries,” in the Oxford Textbook of Global Public Health, edited by Roger Detels, Martin Gulliford, Quarraisha Abdool Karim, and Chorh Chuan Tan (6th ed., 2015); More Than Hot: A Short History of Fever (Johns Hopkins University Press, 2014); and Cholera: The Biography (Oxford University Press, 2009).