1. Department of Infectious Diseases, Medstar Washington Hospital Center Atlanta, Georgia, USA, Washington, DC, USA
2. Viral Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
3. Center for Policy, Planning and Evaluation, DC Department of Health, Washington, DC, USA
4. Public Health Laboratory, DC Department of Forensic Sciences, Washington, DC, USA