High Level of PD-1 Expression on Hepatitis C Virus (HCV)-Specific CD8+ and CD4+ T Cells during Acute HCV Infection, Irrespective of Clinical Outcome

Victoria Kasprowicz, Julian Schulze zur Wiesch, Thomas Kuntzen, Brian E. Nolan, Steven Longworth, Andrew Berical, Jenna Blum, Cory McMahon, Laura L. Reyor, Nahel Elias, William W. Kwok, Barbara G. McGovern, Gordon Freeman, Raymond T. Chung, Paul Klenerman, Lia Lewis-Ximenez, Bruce D. Walker, Todd M. Allen, Arthur Y. Kim and Georg M. Lauer

Journal of Virology 82 ( 6 ): 3154 - 3160 , 2008