1. Vaccine and Infectious Disease and Public Health Services Divisions, Fred Hutchinson Cancer Center , Seattle, Washington , USA
2. Department of Biostatistics, University of Washington , Seattle, Washington , USA
3. Global Development, Regeneron Pharmaceuticals, Inc , Tarrytown, New York , USA
4. Institute for Global Health and Infectious Diseases, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina , USA
5. Division of Infectious Diseases, Massachusetts General Hospital, Harvard Medical School , Boston, Massachusetts , USA