Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, University of Alabama at Birmingham, affiliation not provided to SSRN, Fred Hutchinson Cancer Research Center, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, affiliation not provided to SSRN, Duke University - Duke Human Vaccine Institute, Duke University, Duke University - Departments of Surgery, Immunology, Molecular Genetics and Microbiology, Duke University, Duke University - Departments of Surgery, Immunology, Molecular Genetics and Microbiology, Duke University - Department of Surgery, The Scripps Research Institute - Department of Integrative Structural and Computational Biology, The Scripps Research Institute - Department of Integrative Structural and Computational Biology, The Scripps Research Institute - Department of Integrative Structural and Computational Biology, The Scripps Research Institute, National Institutes of Health, affiliation not provided to SSRN, Columbia University, Vanderbilt University - Division of Infectious Diseases, affiliation not provided to SSRN, Wistar Institute, Wistar Institute, Wistar Institute, Wistar Institute, affiliation not provided to SSRN, Government of the United States of America - Vaccine Research Center, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center - Vaccine and Infectious Disease Division and University of Pennsylvania - Vaccine Center