1. Poxvirus and Rabies Branch, Division of High-Consequence Pathogens and Pathology, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia;
2. Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, Georgia;
3. Division of Global HIV and Tuberculosis, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia;
4. Ministry of Health, Brazzaville, Republic of Congo;
5. Field Epidemiology Training Program, Centers for Disease Control and Prevention, Kinshasa, Democratic Republic of the Congo;
6. International Communication and Education Fund, Kinshasa, Democratic Republic of the Congo