1. Institute of Medical Virology, University Hospital Frankfurt, 60306 Frankfurt am Main, Germany
2. Department of Internal Medicine I, University Hospital Frankfurt, 60306 Frankfurt am Main, Germany
3. Department of Internal Medicine II, Infectious Diseases, University Hospital Frankfurt, 60306 Frankfurt am Main, Germany
4. Institute of Biostatistics and Mathematical Modeling, Goethe University, 60323 Frankfurt am Main, Germany
5. Public Health Department of the City of Frankfurt am Main, 60306 Frankfurt am Main, Germany
6. German Centre for Infection Research, Deutsches Zentrum für Infektionsforschung, External Partner Site Frankfurt, 60306 Frankfurt am Main, Germany