1. Poxvirus and Rabies Branch, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
2. Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
3. Nigerian Centre for Disease Control, Abuja, Nigeria
4. International Health Regulations Strengthening Project, Global Public Health, Public Health England, London, United Kingdom
5. World Health Organization Country Office, Abuja, Nigeria
6. Public Health England, London, United Kingdom
7. Department of Biochemistry and Molecular Biology, Israel Institute for Biological Research, Ness-Ziona, Israel
8. Department of Infectious Diseases, Israel Institute for Biological Research, Ness-Ziona, Israel
9. Institute of Tropical Medicine, Chaim Sheba Medical Center, Tel Hashomer, Israel
10. Faculty of Medicine, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
11. National Public Health Laboratory, National Centre for Infectious Diseases, Singapore