1Department of Preventive Services, Local Health Authority of South Tyrol, Bolzano, Italy
2Regional Healthcare Agency of Abruzzo, Pescara, Italy
3Department of Medical Sciences, University of Ferrara, Ferrara, Italy
4Department of Public Health and Infectious Diseases, “Sapienza” University of Rome, Rome, Italy
5Institute of Public Health, Catholic University of the Sacred Heart, Rome, Italy
6Italian National Institute of Health, Rome, Italy
7Stanford Prevention Research Center, Department of Medicine and Department of Health Research and Policy, Stanford University, Stanford, CA, USA
8Meta-Research Innovation Center at Stanford (METRICS), Stanford University, Stanford, CA, USA
9Department of Statistics, School of Humanities and Sciences, Stanford University, Stanford, CA, USA
10Department of Pediatrics, Division of Infectious Diseases, School of Medicine, Stanford University, Stanford, CA, USA