Michael P. Arnold, Michele Andrasik, Shelly Karuna, and Steven Wakefield are with the Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA. Stewart Landers is with Boston Health Services, John Snow Inc., Boston, MA. Matthew J. Mimiaga is with the Department of Epidemiology, Harvard School of Public Health, Cambridge, MA. Kenneth Mayer is with the Department of Global Health and Population, Harvard School of Public Health. Susan Buchbinder is with Bridge HIV, San Francisco Department of Public Health, San Francisco, CA. Beryl A. Koblin is with Project Achieve, New York Blood Center, New York, NY. Read More