1. Department of Neurology; Center of Infection and Immunity Amsterdam (CINIMA); Academic Medical Center; University of Amsterdam; Amsterdam the Netherlands
2. Department of Neurology; Medical Center Haaglanden; The Hague the Netherlands
3. Department of Medical Microbiology Center of Infection and Immunity Amsterdam (CINIMA); Academic Medical Center; University of Amsterdam; Amsterdam the Netherlands
4. The Netherlands Reference Laboratory for Bacterial Meningitis; Academic Medical Center; University of Amsterdam; Amsterdam the Netherlands