1 I-BioStat, Data Science Institute, Hasselt University, Hasselt, Belgium.
2 Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands.
3 Leiden University Medical Center, Leiden, the Netherlands.
4 Centre for Health Economics Research and Modelling Infectious Diseases (CHERMID), Vaccine and Infectious Disease Institute, University of Antwerp, Antwerp, Belgium.