1. These authors contributed equally
2. Istituto Superiore di Sanità, Rome, Italy
3. Laboratory for the Modeling of Biological and Socio-technical Systems, Northeastern University, Boston, United States
4. Department of Epidemiology and Biostatistics, Indiana University School of Public Health, Bloomington, United States
5. Bruno Kessler Foundation, Trento, Italy
6. Cyprus University of Technology, Limassol, Cyprus
7. European Programme for Intervention Epidemiology Training (EPIET), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden