1. Department of Biomedical and Neuromotor Science, Alma Mater Studiorum - University of Bologna, Bologna, Italy
2. Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy
3. Department of Health Promotion Sciences, Maternal and Infant Care, Internal Medicine and Excellence Specialties “G. D’Alessandro”, University of Palermo, Palermo, Italy
4. Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine Institute of Health Metrics & Evaluation, University of Washington, Seattle, WA, USA
5. Susan Wakil School of Nursing and Midwifery, Faculty of Medicine and Health, University of Sydney, Sydney, Australia
6. Sydney Infectious Diseases Institute, Westmead, Australia