The role of epidemiology in the introduction of Vi polysaccharide typhoid fever vaccines in Asia

Camilo J. Acosta, Claudia M. Galindo, R. Leon Ochiai, M. Carolina Danovaro-Holliday, Anne Laure Page, Vu Dinh Thiem, Jin Kyoung Park, Eunsik Park, Hyewon Koo, Xuan Yi Wang, Remon Abu-Elyazeed, Mohammad Ali, M. John Albert, Bernard Ivanoff, Tikki Pang, Zhi Yi Xu, John D. Clemens