1 Centre for Infectious Disease Control, National Institute of Public Health and the Environment (RIVM), Bilthoven, The Netherlands. manuela.wennekes@rivm.nl.
2 Athena Institute, VU University Amsterdam, Amsterdam, The Netherlands. manuela.wennekes@rivm.nl.
3 Syreon Research Institute, Budapest, Hungary.
4 Centre for Infectious Disease Control, National Institute of Public Health and the Environment (RIVM), Bilthoven, The Netherlands.
5 Center for Health Technology Assessment, Semmelweis University, Budapest, Hungary.
6 Athena Institute, VU University Amsterdam, Amsterdam, The Netherlands.
7 Department of Primary and Community Care, Radboud University Medical Center, Nijmegen, The Netherlands.