inclusion criteria: 1. group 1 : patients not requiring icu at admission with mild disease to severe pneumopathy according to the who criteria of severity of covid pneumopathy, and with symptom onset before 14 days, with need for oxygen but no non-invasive ventilation (niv) or high flow 2. group 2 : * respiratory failure and requiring mechanical ventilation * who progression scale ≥ 6 * no do-not-resuscitate order (dnr order)

inclusion criteria: 1. group 1 : patients not requiring icu at admission with mild disease to severe pneumopathy according to the who criteria of severity of covid pneumopathy, and with symptom onset before 14 days, with need for oxygen but no non-invasive ventilation (niv) or high flow 2. group 2 : * respiratory failure and requiring mechanical ventilation * who progression scale ≥ 6 * no do-not-resuscitate order (dnr order)

inclusion criteria: group 1 : patients not requiring icu at admission with mild disease to severe pneumopathy according to the who criteria of severity of covid pneumopathy, and with symptom onset before 14 days, with need for oxygen but no non-invasive ventilation (niv) or high flow group 2 : respiratory failure and requiring mechanical ventilation who progression scale ≥ 6 no do-not-resuscitate order (dnr order)

inclusion criteria: group 1 : patients not requiring icu at admission with mild disease to severe pneumopathy according to the who criteria of severity of covid pneumopathy, and with symptom onset before 14 days, with need for oxygen but no non-invasive ventilation (niv) or high flow group 2 : respiratory failure and requiring mechanical ventilation who progression scale ≥ 6 no do-not-resuscitate order (dnr order)

inclusion criteria: 1. group 1 : patients not requiring icu at admission with mild disease to severe pneumopathy according to the who criteria of severity of covid pneumopathy, and with symptom onset before 14 days, with need for oxygen but no non-invasive ventilation (niv) or high flow 2. group 2 : - respiratory failure and requiring mechanical ventilation - who progression scale ≥ 6 - no do-not-resuscitate order (dnr order)

inclusion criteria: 1. group 1 : patients not requiring icu at admission with mild disease to severe pneumopathy according to the who criteria of severity of covid pneumopathy, and with symptom onset before 14 days, with need for oxygen but no non-invasive ventilation (niv) or high flow 2. group 2 : - respiratory failure and requiring mechanical ventilation - who progression scale ≥ 6 - no do-not-resuscitate order (dnr order)