[1] Univ Zurich Hosp, Dept Pathol, CH-8091 Zurich, Switzerland
[2] Univ Zurich Hosp, Inst Neuropathol, CH-8091 Zurich, Switzerland
[3] Univ Zurich Hosp, Inst Clin Pathol, CH-8091 Zurich, Switzerland
[4] Univ Zurich, Funct Genom Ctr Zurich, CH-8057 Zurich, Switzerland
[5] Cantonal Hosp Aarau, Dept Pathol, CH-5001 Aarau, Switzerland
[6] Swiss Fed Inst Technol, Inst Integrat Biol, CH-8952 Zurich, Schlieren, Switzerland
[7] Univ Zurich Hosp, Dept Surg, Swiss HPB Hepatopancreaticobiliary Ctr, CH-8091 Zurich, Switzerland
[8] Univ Freiburg, Dept Internal Med, D-79106 Freiburg, Germany
[9] VA Engelhardt Mol Biol Inst, Moscow 119991, Russia
[10] German Rheumatism Res Ctr, D-10117 Berlin, Germany
[11] Med Univ Graz, Inst Pathol, A-8036 Graz, Austria
[12] INSERM, F-38042 Grenoble, France
[13] Univ Grenoble 1, U823, Inst Albert Bonniot, F-38042 Grenoble, France
[14] Med Sch Hannover MHH, Ctr Expt & Clin Infect Res, TWINCORE, Div Expt Virol, D-30625 Hannover, Germany
[15] Helmholtz Ctr Infect Res HZI, D-30625 Hannover, Germany
[16] Univ Calif San Diego, La Jolla, CA 92093 USA
[17] Univ Calif Los Angeles, Los Angeles, CA 92093 USA
[18] Biogen Idec Inc, Dept Immunobiol, Cambridge, MA 02142 USA