Risk stratification for the safety of patients and hospital health workers during Covid-19 emergency

Covid-19 emergency has forced hospitals to face enormous organizational challenges in order to implement solutions to minimize the impact of the infection and guarantee at the same time the quality of health services provided and the safety of patients and health workers ULSS 6 Euganea - Health Trust (District of Padua) has defined four levels of risk for Hospital Units (from the highest to the lowest risk: Red, Yellow, Green and White) based on the following parameters: type of patients hospitalized (SARS-CoV-2 positive, Covid-like, negative), type of health services provided, time of assistance and care for hospitalized patient