1. Research Center for Cancer, Infections and Immunity, Institute of Biomedicine, Centre for Infections and Immunity, University of Turku, Turku, Finland
2. Department of Paediatric and Adolescent Medicine, Turku University Hospital, and University of Turku, Turku, Finland
3. InFLAMES Research Flagship Center, University of Turku, Turku, Finland
4. National Institute for Public Health and the Environment (RIVM), Centre for Infectious Disease Control, Bilthoven, the Netherlands