The Working Paper of Public Health (WP) series of the Azienda Ospedaliera di Alessandria, Italy, is an online and Open Access, progressive and multidisciplinary publication series in Public Health (ISSN: 2279-9761). It includes contributions from medicine and epidemiology, as well as contributions from health economics and management, ethics and law. It covers everything that can protect and improve the health of the community through the promotion of healthy lifestyles, as well as the prevention of disease and infection, and the improvement of care (both medical and nursing) and patient care. Therefore, the scientific objective is to improve the health status of individuals and/or patients, both through the prevention of what could affect it and through medical and/or nursing care aimed at restoring it. The published articles engage only the authors, the opinions expressed do not imply any responsibility by the Hospital "SS. Antonio e Biagio e Cesare Arrigo" of Alessandria.