[1] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Int Hlth, Baltimore, MD 21205 USA
[2] MRC Labs, Fajara, Gambia
[3] Kaiser Permanente Vaccine Study Ctr, Oakland, CA USA
[4] WHO, CH-1211 Geneva, Switzerland
[5] Soroka Univ, Med Ctr, Paediat Infect Dis Unit, Beer Sheva, Israel
[6] Ben Gurion Univ Negev, Fac Hlth Sci, Beer Sheva, Israel
[7] UCL, Inst Child Hlth, London, England
[8] Great Ormond St Hosp Sick Children, London WC1N 3JH, England
[9] Int Paediat Assoc, Lagos, Nigeria
[10] London Sch Hyg & Trop Med, London WC1, England
[11] Ctr Dis Control & Prevent, Arctic Invest Program, Natl Ctr Infect Dis, Anchorage, AK USA
[12] Emory Univ, Rollins Sch Publ Hlth, Hubert Dept Global Hlth, Atlanta, GA 30322 USA
[13] Univ Witwatersrand, MRC, Resp & Meningeal Pathogens Res Unit, Johannesburg, South Africa
[14] Natl Publ Hlth Inst, Helsinki, Finland
[15] Dhaka Shishu Hosp, Bangladesh Inst Child Hlth, Dept Microbiol, Dhaka, Bangladesh
[16] Wellcome Trust Kenya Med Res Inst, Ctr Geog Med Res Coast, Kilifi, Kenya
[17] Ctr Dev Vaccins Mali, Bamako, Mali