[1] Tech Univ Munich, Inst Virol, Helmholtz Zentrum Munchen, Trogerstr 30, D-81675 Munich, Germany
[2] German Ctr Infect Res DZIF, Munich Site, D-81675 Munich, Germany
[3] Univ Latvia, Biomed Res & Study Ctr, 1 Ratsupites St, LV-1067 Riga, Latvia
[4] Univ Saskatchewan, Sch Publ Hlth, Vaccinol & Immunotherapeut, 107 Wiggins Rd, Saskatoon, SK S7N 5E3, Canada
[5] Univ Saskatchewan, Vaccine & Infect Dis Org, Int Vaccine Ctr, 120 Vet Rd, Saskatoon, SK S7N 5E3, Canada
[6] Tech Univ Munich, Inst Med Microbiol Immunol & Hyg, Trogerstr 30, D-81675 Munich, Germany
[7] Helmholtz Zentrum Munchen, Clin Cooperat Grp Antigen Specif Immunotherapy &, Munich, Germany
[8] Univ Alberta, 3-7 Univ Hall, Edmonton, AB T6G 2J9, Canada
[9] Johannes Gutenberg Univ Mainz, Med Ctr, Inst Med Microbiol & Hyg, D-55131 Mainz, Germany