[1] London Sch Hyg & Trop Med, Infect Dis Epidemiol, London, England
[2] UVRI, CISP, MRC, Entebbe, Uganda
[3] LSHTM, Uganda Res Unit, Entebbe, Uganda
[4] Mulago Hosp, Paediat & Child Hlth, Kampala, Uganda
[5] London Sch Hyg & Trop Med, Noncommunicable Dis Epidemiol, London, England