Inclusion Criteria:  Inclusion of any patient, over the age of 18, consulting the Sahloul emergencies, Sousse for symptoms of COVID -19 dating less than 10 days and having a positive COVID-19 on the PCR test and typical scanner.  Exclusion Criteria:  Any pregnant or breastfeeding woman patient with an expectation of survival of less than 24 hours Dyspnea leading to heart failure Hepatic insufficiency Chronic respiratory failure Renal failure, clearance <20ml • min-1 • 1.73 • m-²