Mark K. Arness*, Brian H. Feighner†, Michelle L. Canham†, David N. Taylor‡, Stephan S. Monroe§, Theodore J. Cieslak¶, Edward L. Hoedebecke†, Christina S. Polyak†, Judy C. Cuthie†, Rebecca L. Fankhauser§, Charles D. Humphrey§, Tamra L. Barker#, Chris D. Jenkins#, and Donald R. Skillman#

Author affiliations: *Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA; †U.S. Army Center for Health Promotion and Preventive Medicine, Edgewood, Maryland, USA; ‡Walter Reed Army Institute of Research, Washington, D.C., USA; §Centers for Disease Control and Prevention, Atlanta, Georgia, USA; ¶U.S. Army Medical Research Institute of Infectious Diseases, Frederick, Maryland, USA; and; #William Beaumont Army Medical Center, El Paso, Texas, USA