University of Buea, University of Abuja, University of Ibadan - Faculty of Public Health, Government of Cameroon - Ministry of Public Health Cameroon, Institute of Health, Jimma University, University of Pretoria - Epidemiology Section, Institut Pasteur de Dakar - Pôle de Microbiologie, Addis Ababa University, University of Health and Allied Sciences - School of Basic and Biomedical Sciences, ARC-Onderstepoort Veterinary Research, University of Médéa and African Vaccinology Network