1. Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA
2. Basic Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA
3. Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA
4. Department of Global Health, University of Washington, Seattle, WA
5. Department of Immunology, University of Washington, Seattle, WA