National Institute for Public Health and the Environment (RIVM) - Centre for Infectious Disease Control, Netherlands Food and Consumer Product Safety Authority, Wageningen University and Research (WUR) - Wageningen Food Safety Research, National Institute for Public Health and the Environment (RIVM) - Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM) - Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM) - Centre for Infectious Disease Control, Leiden University, Leiden University - Department of Medical Microbiology, Leiden University - Department of Medical Microbiology and Leiden University