Efficacy of the Early Prone-positioning in Hospitalized Patients With Mild Covid-19 Pneumonia

The study aims to evaluate if the early prone-positioning in awake patients with mild Covid-19 pneumonia can reduce the need of high-flow oxygen-therapy, invasive or non-invasive ventilation and prevent the worsening of clinical conditions. Patients will be randomized on a 1:1 ratio and stratified based on the onset of symptoms (\10 days) and need of oxygen therapy (no need; need). One branch of patients (interventional) will undergo standard of care treatment + prone-positioning cycles, the other one (controll) will undergo standard of care treatment alone. Patients will be evaluated evaluated on the day of the enrolment, on day 1, day 3, day 7 and every 7 days until the patient dismissal or until day 28 (whichever occurs first). Adverse events and concurrent medications will be noted as well. The analysis will be conducted according to "intention to treat" criteria; primary outcomes will be calculated using survival-based methods.