1. Department of Medical Microbiology and Infection Control, Orbis Medical Centre, Sittard-Geleen, the Netherlands
2. Department of Medical Microbiology and Immunology, St. Antonius Hospital, Nieuwegein, the Netherlands
3. Centre for Infectious Disease Control Netherlands, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
4. Department of Medical Microbiology, Rijnstate, Velp, the Netherlands
5. Department of Medical Microbiology, Academic Medical Centre, Amsterdam, the Netherlands
6. Department of Molecular Biotechnology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium