1. Institute of Virology, University of CologneCologne Germany
2. Department of Otorhinolaryngology, Head and Neck SurgeryUniversity of CologneCologne Germany
3. Department of PathologyUniversity of CologneCologne Germany
4. Cologne Interventional Immunology, Department of Internal MedicineUniversity Hospital of CologneCologne Germany
5. Jean‐Uhrmacher‐Institute for Otorhinolaryngological ResearchUniversity of CologneCologne Germany