1 Center for Infectious Diseases, Institute of Medical Microbiology and Hygiene, Saarland University, Homburg, Germany.
2 Institute of Virology, Saarland University Medical Center, Homburg, Germany.
3 Department of Medicine V: Pneumology, Allergology and Intensive Care Medicine, ECLS Center Saar, Saarland University Medical Center, Saarland University, Homburg, Germany.
4 Center for Infectious Diseases, Institute of Medical Microbiology and Hygiene, Saarland University, Homburg, Germany; Institute for Hygiene and Public Health, University Hospital Bonn, Bonn, Germany.
5 Department of Clinical Chemistry and Laboratory Medicine, Saarland University Medical Center, Saarland University, Homburg, Germany.
6 Department of Medicine II, Saarland University Medical Center, Saarland University, Homburg, Germany.
7 Institute of Virology, Saarland University Medical Center, Homburg, Germany; Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Saarland University Campus, Saarbrücken, Germany.
8 Center for Infectious Diseases, Institute of Medical Microbiology and Hygiene, Saarland University, Homburg, Germany; Institute for Hygiene and Public Health, University Hospital Bonn, Bonn, Germany. Electronic address: [email protected].