[1] Internat Vaccine Inst, Seoul 151818, South Korea
[2] Guangxi Ctr Dis Control & Prevent, Guangxi, Peoples R China
[3] Natl Inst Cholera & Enter Dis, Kolkata, India
[4] Natl Inst Hlth Res & Dev, Jakarta, Indonesia
[5] Aga Khan Univ, Dept Paediat, Karachi, Pakistan
[6] Natl Inst Hyg & Epidemiol, Hanoi, Vietnam
[7] Wellcome Trust Sanger Inst, Cambridge, England
[8] Kuwait Univ, Fac Med, Dept Microbiol, Kuwait, Kuwait
[9] Univ Oxford, Clin Res Unit, Oxford, England
[10] USNAMRU 3, Enter Dis Res Program, Epidemiol Unit, Cairo, Egypt
[11] World Hlth Org, Geneva, Switzerland