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Phase 3 Safety and Efficacy of AZD1222 (ChAdOx1 nCoV-19) Covid-19 Vaccine.

Autor: Falsey AR; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Sobieszczyk ME; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Hirsch I; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Sproule S; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Robb ML; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Corey L; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Neuzil KM; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Hahn W; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Hunt J; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Mulligan MJ; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., McEvoy C; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., DeJesus E; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Hassman M; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Little SJ; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Pahud BA; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Durbin A; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Pickrell P; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Daar ES; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Bush L; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Solis J; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Carr QO; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Oyedele T; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Buchbinder S; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Cowden J; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Vargas SL; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Guerreros Benavides A; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Call R; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Keefer MC; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Kirkpatrick BD; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Pullman J; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Tong T; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Brewinski Isaacs M; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Benkeser D; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Janes HE; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Nason MC; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Green JA; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Kelly EJ; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Maaske J; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Mueller N; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Shoemaker K; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Takas T; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Marshall RP; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Pangalos MN; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Villafana T; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.)., Gonzalez-Lopez A; From the University of Rochester School of Medicine and Dentistry (A.R.F., M.C.K.) and Rochester Regional Health (A.R.F.), Rochester, and Vagelos College of Physicians and Surgeons, New York Presbyterian Columbia University Irving Medical Center, Department of Medicine, Division of Infectious Diseases (M.E.S.) and the New York University Vaccine Center (M.J.M.), New York - all in New York; Biometrics (I.H.) and Infectious Diseases (J.A.G.), Late-Stage Development, Respiratory and Immunology (R.P.M.), Biopharmaceuticals Research and Development (M.N.P.), AstraZeneca, Cambridge, United Kingdom; Biometrics (S.S., K.S.) and Infectious Diseases, Late-Stage Development, Respiratory and Immunology (J.M., T. Takas, T.V., A.G.-L.), Translational Medicine, Microbial Sciences, Biopharmaceuticals Research and Development (E.J.K.), and Clinical Development, Early Global Development, Oncology Research and Development (N.M.), AstraZeneca, Gaithersburg, the Walter Reed Army Institute of Research, Silver Spring (M.L.R.), the University of Maryland School of Medicine (K.M.N.) and the Johns Hopkins Bloomberg School of Public Health (A.D.), Baltimore, the Joint Program Executive Office for Chemical, Biological, Radiological, and Nuclear Defense, Edgewood (J.C.), and the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda (T. Tong, M.B.I., M.C.N.) - all in Maryland; the University of Washington (L.C., W.H.) and the Fred Hutchinson Cancer Research Center (L.C., W.H., J.H., H.E.J.), Seattle; HealthPartners Institute, St. Paul, MN (C.M.); Orlando Immunology Center, Orlando (E.D.), and JEM Headlands Research, Lake Worth Beach (L.B.) - both in Florida; Hassman Research Institute, Berlin, NJ (M.H.); the University of California San Diego, La Jolla (S.J.L.), the Lundquist Institute at Harbor-UCLA Medical Center, Torrance (E.S.D.), and the San Francisco Department of Public Health, San Francisco (S.B.) - all in California; Children's Mercy Kansas City, Kansas City, MO (B.A.P.); Tekton Research, Austin (P.P.), and Centex Studies, McAllen (J.S.) - both in Texas; Medpharmics, Albuquerque, NM (Q.O.C.); John H. Stroger, Jr. Hospital of Cook County, Chicago (T.O.); Instituto de Ciencias Biomédicas, Facultad de Medicina Universidad de Chile, Santiago, Chile (S.L.V.); Clínica Internacional Sede Lima, Lima, Peru (A.G.B.); Clinical Research Partners, Richmond, VA (R.C.); the University of Vermont Larner College of Medicine and UVM Medical Center, Burlington (B.D.K.); Mercury Street Medical Group, Butte, MT (J.P.); and the Rollins School of Public Health at Emory University, Atlanta (D.B.).

Publikováno v: The New England journal of medicine [N Engl J Med] 2021 Dec 16; Vol. 385 (25), pp. 2348-2360. Date of Electronic Publication: 2021 Sep 29.