1. Department of Infectious Diseases Integrative Virology University Hospital Heidelberg Heidelberg Germany
2. German Centre for Infection Research (DZIF), Partner Site Heidelberg Heidelberg Germany
3. Department of Otorhinolaryngology University Hospital Heidelberg Heidelberg Germany
4. Department of Otorhinolaryngology, Head and Neck Surgery SLK Klinikum Am Gesundbrunnen Heilbronn Germany
5. Laboratory of Experimental Immunology Institute of Virology University Hospital of Cologne Cologne Germany
6. German Centre for Infection Research (DZIF), Partner Site Köln Köln Germany