1. Enteric and Diarrheal Diseases, Global Health, Bill & Melinda Gates Foundation , Seattle, Washington , USA
2. Department of Electron Microscopy and Histopathology, Noguchi Memorial Institute for Medical Research, University of Ghana , Legon , Ghana
3. VPD Surveillance, World Health Organization (WHO) Regional Office for Africa (WHO/AFRO) , Brazzaville , Republic of Congo