Department of Systems Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany , Frankfurt Institute for Advanced Studies, Frankfurt, Germany.|Department of Systems Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany , Frankfurt Institute for Advanced Studies, Frankfurt, Germany.|Department of Systems Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany , Frankfurt Institute for Advanced Studies, Frankfurt, Germany.|Department of Systems Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany , Frankfurt Institute for Advanced Studies, Frankfurt, Germany.