Feb 15, 2013 鈥 By Lainie Rusco 鈥 The flu: It's a popular topic of conversation lately, as most people probably know someone who has gotten sick this winter. But for Wichita State associate professor George Dehner, the flu is a year-round focus. Dehner, who teaches world and environmental history, recently wrote two books about the flu. "Influenza: A Century of Science and Public Health Response," which Dehner said is aimed at the