1. Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München, 81675 Munich, Germany.
2. Focus Group “Clinical Cell Processing and Purification,” Institute for Advanced Study, Technische Universität München, 81675 Munich, Germany.
3. Max Delbrück Center for Molecular Medicine, 13125 Berlin, Germany.
4. Humboldt-Universität Berlin, 10099 Berlin, Germany.
5. Institute for Virology and Research Center for Immunology (FZI), University Medical Center of the Johannes Gutenberg-University, 55131 Mainz, Germany.
6. Clinical Cooperation Groups “Antigen-specific Immunotherapy” and “Immune Monitoring,” Helmholtz Center Munich (85764 Neuherberg) and Technische Universität München, 81675 Munich, Germany.
7. DZIF–National Centre for Infection Research, 81675 Munich, Germany.
8. Medical Department III, Hematology and Oncology, Technische Universität München, 81675 Munich, Germany.
9. Helmholtz Virtual Institute on Viral Strategies of Immune Evasion (VISTRIE), Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany.
10. Program in Immunology, Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.