1. Institute for Virology University Hospital Essen University of Duisburg‐Essen Essen Germany
2. Institute of Medical Microbiology University Hospital Essen University of Duisburg‐Essen Essen Germany
3. Institute of Pathology University of Bern Bern Switzerland
4. Institute of Veterinary Pathology Free University of Berlin Berlin Germany
5. Department of Gastroenterology and Hepatology University Hospital Essen University of Duisburg‐Essen Essen Germany
6. Inorganic Chemistry and Centre for Nanointegration Duisburg‐Essen (CeNIDE) University of Duisburg‐Essen Essen Germany