1 Ophtha-Lab, Department of Ophthalmology at St. Franziskus Hospital, Muenster, Germany.
2 Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.
3 University Hospital of Ulm, Institute of Virology, Ulm, Germany.
4 Department of Immune Modulation, University Hospital Erlangen, Erlangen, Germany.
5 University of Bonn Medical Center, Institute of Virology, Bonn, Germany.
6 Department of Viroscience, Erasmus MC, Rotterdam, the Netherlands.
7 Ophtha-Lab, Department of Ophthalmology at St. Franziskus Hospital, Muenster, Germany; University Hospital of Essen, Department of Ophthalmology, Essen, Germany.
8 Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany; Technical University of Munich, Institute of Virology, Munich, Germany.
9 Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany. Electronic address: Adalbert.Krawczyk@uk-essen.de.