1. United States Army Medical Research Institute of Infectious Diseases (USAMRIID), Veterinary Medicine Division, Fort Detrick, Maryland;
2. United States Army Medical Research Institute of Infectious Diseases (USAMRIID), Virology Division, Fort Detrick, Maryland;
3. United States Army Medical Research Institute of Infectious Diseases (USAMRIID), Pathology Division, Fort Detrick, Maryland;
4. United States Army Medical Research Institute of Infectious Diseases (USAMRIID), Biostatistics Division, Fort Detrick, Maryland;
5. Walter Reed Army Institute of Research, Virology Division, Silver Spring, Maryland;
6. International Vaccine Institute (IVI), Seoul, Republic of Korea;
7. Philippines-AFRIMS Virology Research Unit (PARVU), Cebu City, Philippines