Department of Acute Infectious Diseases Control and Prevention Jiangsu Provincial Center for Disease Control and Prevention Nanjing Jiangsu 210009 China;
Department of Medical Affairs the First Affiliated Hospital of Nanjing Medical University Nanjing Jiangsu 210029 China;
School of Public Health the University of Adelaide Adelaide SA 5000 Australia;
avian influenza; H7N9; disability adjusted life years; burden of disease; probabilistic multiplier model;