1. KU Leuven, Rega Institute, Department of Microbiology, Immunology and Transplantation, Laboratory of Clinical and Epidemiological Virology, Leuven, Belgium
2. Center for Medical Analysis, Department of Molecular Biology and Immunology, Herentals, Belgium
3. University Hospitals Leuven, Department of Laboratory Medicine, National Reference Center for Respiratory Pathogens, Leuven, Belgium