1 Division of Public Health Emergency Preparedness and Response, Ministry of Health, Kampala, Uganda; School of Public Health, Makerere University, Kampala, Uganda. Electronic address: [email protected].
2 Infectious Diseases Division, International Centre for Diarrhoeal Disease Research Bangladesh, Dhaka, Bangladesh.
3 WHO, Pretoria, South Africa.
4 School of Public Health, Makerere University, Kampala, Uganda.