inclusion criteria: * positive sars-cov-2 test on nasopharyngeal swab * onset of symptoms \<8 days prior to randomization * news score\<4 and no item ≥2 * at least one comorbidity among: age ≥ 70 years old, history of cardiac disease, diabetes, obesity, chronic kidney disease, chronic respiratory failure, immunosuppression, neoplasia, liver failure (stage ≥ child-pugh b) * fully able to understand the challenges of the trial * signed informed consent * covered by health insurance

inclusion criteria: * positive sars-cov-2 test on nasopharyngeal swab * onset of symptoms \<8 days prior to randomization * news score\<4 and no item ≥2 * at least one comorbidity among: age ≥ 70 years old, history of cardiac disease, diabetes, obesity, chronic kidney disease, chronic respiratory failure, immunosuppression, neoplasia, liver failure (stage ≥ child-pugh b) * fully able to understand the challenges of the trial * signed informed consent * covered by health insurance

inclusion criteria: - positive sars-cov-2 test on nasopharyngeal swab - onset of symptoms <8 days prior to randomization - news score<4 and no item ≥2 - at least one comorbidity among: age ≥ 70 years old, history of cardiac disease, diabetes, obesity, chronic kidney disease, chronic respiratory failure, immunosuppression, neoplasia, liver failure (stage ≥ child-pugh b) - fully able to understand the challenges of the trial - signed informed consent - covered by health insurance

inclusion criteria: - positive sars-cov-2 test on nasopharyngeal swab - onset of symptoms <8 days prior to randomization - news score<4 and no item ≥2 - at least one comorbidity among: age ≥ 70 years old, history of cardiac disease, diabetes, obesity, chronic kidney disease, chronic respiratory failure, immunosuppression, neoplasia, liver failure (stage ≥ child-pugh b) - fully able to understand the challenges of the trial - signed informed consent - covered by health insurance