About the Authors

Daniel Sauter

daniel.sauter@med.uni-tuebingen.de (DS); frank.kirchhoff@uni-ulm.de (FK)

Affiliation Institute for Medical Virology and Epidemiology of Viral Diseases, University Hospital Tübingen, Tübingen, Germany

Frank Kirchhoff

daniel.sauter@med.uni-tuebingen.de (DS); frank.kirchhoff@uni-ulm.de (FK)

Affiliation Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany

Competing Interests

The authors have declared that no competing interests exist.