1. Department of Epidemiology, Helmholtz Centre for Infectious Research, Brunswick, Germany
2. Institute of Infection Medicine, University of Kiel, University Hospital Schleswig Holstein, Kiel, Germany
3. Division of Experimental Virology, Institute of Medical Microbiology, Jena University Hospital, Friedrich Schiller University Jena, Jena, Germany
4. Institute for Infectious Disease Epidemiology, TWINCORE, Hanover, Germany
5. Translational Infrastructure Epidemiology, German Centre for Infection Research (DZIF), Brunswick, Germany