1. From the Division of Vaccine and Infectious Disease and the Division of Public Health Sciences, Fred Hutchinson Cancer Center, and the Department of Biostatistics, University of Washington — both in Seattle (P.B.G., Y.F.); the Biomedical Advanced Research and Development Authority, Administration for Strategic Preparedness and Response, Washington, DC (R.O.D.); the Vaccine Research Center (R.A.K.) and the Biostatistics Research Branch (D.F.), National Institute of Allergy and Infectious Diseases,...