inclusion criteria: age 18-90 years ; covid-19 confirmed case ; cases showing respiratory symptoms, checking at least one of the following criteria: cough, dyspnea, respiratory rate > 24 breaths/min oxygen saturation < 95% at rest in ambient air pao2 < 70mmhg scanographic pulmonary compatible with covid in the absence of any other etiology risk of deterioration, checking at least one of the following comorbidity criteria : chronic respiratory pathology diabetes cancer pathology cardiovascular disease chronic kidney failure congenital or acquired immunodeficiency cirrhosis at stage b major sickle cell syndrome bmi > 30 kg/m2 or one of the biological criteria : d-dimer 1 µg/ml, lymphocytes < 0.8 g/l, ferritin > 300 µg/l, troponin i > 11 pg/ml or troponin t > 24.8 pg/ml

inclusion criteria: age 18-90 years ; covid-19 confirmed case ; cases showing respiratory symptoms, checking at least one of the following criteria: cough, dyspnea, respiratory rate > 24 breaths/min oxygen saturation < 95% at rest in ambient air pao2 < 70mmhg scanographic pulmonary compatible with covid in the absence of any other etiology risk of deterioration, checking at least one of the following comorbidity criteria : chronic respiratory pathology diabetes cancer pathology cardiovascular disease chronic kidney failure congenital or acquired immunodeficiency cirrhosis at stage b major sickle cell syndrome bmi > 30 kg/m2 or one of the biological criteria : d-dimer 1 µg/ml, lymphocytes < 0.8 g/l, ferritin > 300 µg/l, troponin i > 11 pg/ml or troponin t > 24.8 pg/ml

inclusion criteria: 1. age 18-90 years ; 2. covid-19 confirmed case ; 3. cases showing respiratory symptoms, checking at least one of the following criteria: 1. cough, dyspnea, respiratory rate > 24 breaths/min 2. oxygen saturation < 95% at rest in ambient air 3. pao2 < 70mmhg 4. scanographic pulmonary compatible with covid in the absence of any other etiology 4. risk of deterioration, checking at least one of the following comorbidity criteria : 1. chronic respiratory pathology 2. diabetes 3. cancer pathology 4. cardiovascular disease 5. chronic kidney failure 6. congenital or acquired immunodeficiency 7. cirrhosis at stage b 8. major sickle cell syndrome 9. bmi > 30 kg/m2 or one of the biological criteria : 1. d-dimer 1 µg/ml, 2. lymphocytes < 0.8 g/l, 3. ferritin > 300 µg/l, 4. troponin i > 11 pg/ml or troponin t > 24.8 pg/ml

inclusion criteria: 1. age 18-90 years ; 2. covid-19 confirmed case ; 3. cases showing respiratory symptoms, checking at least one of the following criteria: 1. cough, dyspnea, respiratory rate > 24 breaths/min 2. oxygen saturation < 95% at rest in ambient air 3. pao2 < 70mmhg 4. scanographic pulmonary compatible with covid in the absence of any other etiology 4. risk of deterioration, checking at least one of the following comorbidity criteria : 1. chronic respiratory pathology 2. diabetes 3. cancer pathology 4. cardiovascular disease 5. chronic kidney failure 6. congenital or acquired immunodeficiency 7. cirrhosis at stage b 8. major sickle cell syndrome 9. bmi > 30 kg/m2 or one of the biological criteria : 1. d-dimer 1 µg/ml, 2. lymphocytes < 0.8 g/l, 3. ferritin > 300 µg/l, 4. troponin i > 11 pg/ml or troponin t > 24.8 pg/ml

inclusion criteria: 1. age 18-80 years ; 2. covid-19 confirmed case ; 3. cases showing respiratory symptoms, checking at least one of the following criteria: 1. cough, dyspnea, respiratory rate > 24 breaths/min 2. oxygen saturation < 95% at rest in ambient air 3. pao2 < 70mmhg 4. scanographic pulmonary compatible with covid in the absence of any other etiology 4. risk of deterioration, checking at least one of the following comorbidity criteria : 1. chronic respiratory pathology 2. diabetes 3. cancer pathology 4. cardiovascular disease 5. chronic kidney failure 6. congenital or acquired immunodeficiency 7. cirrhosis at stage b 8. major sickle cell syndrome 9. bmi > 30 kg/m2 or one of the biological criteria : 1. d-dimer 1 µg/ml, 2. lymphocytes < 0.8 g/l, 3. ferritin > 300 µg/l, 4. troponin i > 11 pg/ml

inclusion criteria: 1. age 18-80 years ; 2. covid-19 confirmed case ; 3. cases showing respiratory symptoms, checking at least one of the following criteria: 1. cough, dyspnea, respiratory rate > 24 breaths/min 2. oxygen saturation < 95% at rest in ambient air 3. pao2 < 70mmhg 4. scanographic pulmonary compatible with covid in the absence of any other etiology 4. risk of deterioration, checking at least one of the following comorbidity criteria : 1. chronic respiratory pathology 2. diabetes 3. cancer pathology 4. cardiovascular disease 5. chronic kidney failure 6. congenital or acquired immunodeficiency 7. cirrhosis at stage b 8. major sickle cell syndrome 9. bmi > 30 kg/m2 or one of the biological criteria : 1. d-dimer 1 µg/ml, 2. lymphocytes < 0.8 g/l, 3. ferritin > 300 µg/l, 4. troponin i > 11 pg/ml