1. Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
2. Department of Global Health, University of Washington, Seattle, WA, USA
3. National Institutes of Health, Vaccine Research Center, Bethesda, MD, USA
4. Department of Medicine, Duke University, Durham, NC, USA
5. Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
6. The Fenway Institute, Boston, MA, USA
7. Department of Medicine, University of Washington, Seattle, WA, USA
8. Department of Biostatistics, University of Washington, Seattle, WA, USA,