1. Department of Cancer Immunology and Virology, Dana–Farber Cancer Institute, Boston, MA 02115, USA
2. Department of Microbiology, Harvard Medical School, Boston, MA 02115, USA
3. Institute of Virology, Technical University of Munich, Munich, Germany
4. Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
5. Parker Institute for Cancer Immunotherapy at Dana–Farber Cancer Institute, Boston, MA 02115, USA
6. German Center for Infection Research (DZIF), Munich partner site, Munich, Germany