1Seattle Biomedical Research Institute, 307 Westlake Avenue North, Suite 500, Seattle, WA98109, USA
2Department of Global Health, University of Washington, Seattle, WA 98195, USA
3Seattle Biomedical Research Institute, 307 Westlake Avenue North, Suite 500, Seattle, WA 98109, USA
4Center for the Study of Hepatitis C, The Rockefeller University, New York, NY 10065, USA