1. Department of Viroscience, Erasmus Medical Center , University Medical Center, Rotterdam, The Netherlands
2. Department of Medical Microbiology and Infectious Diseases, Erasmus Medical Center, University Medical Center, Rotterdam, The Netherlands
3. Laboratory of Clinical and Epidemiological Virology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, Kristelijke Universiteit Leuven, Leuven, Belgium
4. Department of Laboratory Medicine, University Hospitals Leuven, Leuven, Belgium
5. Department of Internal Medicine and Infectious Diseases, Rijnstate Ziekenhuis, Arnhem, The Netherlands
6. Department of Internal Medicine and Infectious Diseases, Onze lieve vrouwe gasthhuis, Amsterdam, The Netherlands
7. Department of Clinical Science, Institute of Tropical Medicine Antwerp, Antwerp, Belgium
8. Department of Internal Medicine and Infectious Diseases, Universitair Medisch Centrum Utrecht, Utrecht University, Utrecht, The Netherlands