[1] Twincore Ctr Expt & Clin Infect Res, Inst Expt Virol, D-30625 Hannover, Germany
[2] Heidelberg Univ, Dept Infect Dis, Mol Virol, Heidelberg, Germany
[3] Univ Alberta, Dept Biochem, Edmonton, AB, Canada
[4] Univ Alberta, Dept Med Microbiol & Immunol, Edmonton, AB, Canada
[5] Univ Alberta, Li Ka Shing Inst Virol, Edmonton, AB, Canada
[6] Univ Basel, Dept Biomed, Basel, Switzerland
[7] Univ Basel Hosp, Div Gastroenterol & Hepatol, CH-4031 Basel, Switzerland
[8] Hannover Med Sch, Dept Gastroenterol Hepatol & Endocrinol, Hannover, Germany
[9] Hannover Med Sch, Dept Gen Visceral & Transplantat Surg, ReMediES, Hannover, Germany
[10] German Ctr Infect Res, Hannover, Germany
[11] Heidelberg Univ, German Ctr Infect Res, Heidelberg, Germany