1. Division of Viral Diseases National Center for Immunization and Respiratory Diseases Centers for Disease Control and Prevention Atlanta GA USA
2. Division for the Fight against Disease, Epidemics and Pandemics Ministry of Health Yaoundé Cameroon
3. Centre Pasteur du Cameroun Yaoundé Cameroon
4. National Public Health Laboratory Ministry of Health Yaoundé Cameroon
5. Division of Global Health Protection Center for Global Health Atlanta GA USA