Ziad| El-Khatib| Department of Global Public Health, Karolinska Institute |Sweden| ziad.el-khatib@ki.se|
Fongang Che| Landis| The University of Bamenda| Cameroon| fongang.che@uniba.cm|
Kassim |Kamara| Directorate of Health Security and Emergencies, Ministry of Health and Sanitation |Sierra Leone| kassim10915@gmail.com|