1. Division of Pathology, US Army Medical Research Institute of Infectious Diseases, Ft. Detrick, MD
2. Department of Pathology, Wildlife Conservation Society, Bronx, NY
3. Arbovirus Diseases Branch, Division of Vector-borne Infectious Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Fort Collins, CO
4. Department of Clinical Sciences, Wildlife Conservation Society, Bronx, NY
5. Division of Virology, US Army Medical Research Institute of Infectious Diseases, Ft. Detrick, MD