1. Regeneron Pharmaceuticals, Inc., Tarrytown, New York
2. Virology Division, US Army Medical Research Institute of Infectious Diseases, Ft. Detrick, Maryland
3. Department of Virology and Immunology, Texas Biomedical Research Institute, San Antonio
4. Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, California
5. Pathology Division, US Army Medical Research Institute of Infectious Diseases, Ft. Detrick, Maryland
6. Center for Aerobiological Sciences, US Army Medical Research Institute of Infectious Diseases, Ft. Detrick, Maryland
7. Biomedical Advanced Research and Development Authority, Office of the Assistant Secretary for Preparedness and Response, US Department of Health and Human Services, Washington, DC
8. Office of the Commander, US Army Medical Research Institute of Infectious Diseases, Ft. Detrick, Maryland