Affiliation: | Centers for Disease Control and Prevention, Atlanta, Georgia, USA (T.T. Ao, J. Sobel, S.P. Luby); ;Institute of Epidemiology, Disease Control and Research, Dhaka, Bangladesh (M. Rahman, F. Haque, A. Chakraborty, S. Haider, A.S.M. Alamgir); ;icddr,b, Dhaka (F. Haque, A. Chakraborty, M.J. Hossain, S.P. Luby, E.S. Gurley) |