1. Department of Paediatric Immunology and Infectious Diseases, Wilhelmina Children’s Hospital, and
2. Spaarne Gasthuis Academy, Hoofddorp and Haarlem, the Netherlands
3. Medical Research Council, Centre for Inflammation Research, Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
4. Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, the Netherlands
5. Microbiology and Systems Biology Group, Netherlands Organization for Applied Scientific Research, Zeist, the Netherlands; and
6. Department of Preventive Dentistry, Academic Center for Dentistry Amsterdam, University of Amsterdam, Amsterdam, the Netherlands