1. respiratory index ≤200 2. contraindications for the transfusion of donor immune plasma or history of prior reactions to blood transfusions 3. mechanical ventilation 4. the presence of chronic lung diseases with chronic respiratory failure. 5. the need for home continuous oxygen therapy before the onset of current disease. 6. serum creatinine level higher than 150 μmol / l 7. pregnancy or breastfeeding

1. respiratory index ≤200 2. contraindications for the transfusion of donor immune plasma or history of prior reactions to blood transfusions 3. mechanical ventilation 4. the presence of chronic lung diseases with chronic respiratory failure. 5. the need for home continuous oxygen therapy before the onset of current disease. 6. serum creatinine level higher than 150 μmol / l 7. pregnancy or breastfeeding

respiratory index ≤200 contraindications for the transfusion of donor immune plasma or history of prior reactions to blood transfusions mechanical ventilation the presence of chronic lung diseases with chronic respiratory failure. the need for home continuous oxygen therapy before the onset of current disease. serum creatinine level higher than 150 μmol / l pregnancy or breastfeeding

respiratory index ≤200 contraindications for the transfusion of donor immune plasma or history of prior reactions to blood transfusions mechanical ventilation the presence of chronic lung diseases with chronic respiratory failure. the need for home continuous oxygen therapy before the onset of current disease. serum creatinine level higher than 150 μmol / l pregnancy or breastfeeding

1. respiratory index ≤200 2. contraindications for the transfusion of donor immune plasma or history of prior reactions to blood transfusions 3. mechanical ventilation 4. the presence of chronic lung diseases with chronic respiratory failure. 5. the need for home continuous oxygen therapy before the onset of current disease. 6. serum creatinine level higher than 150 μmol / l 7. pregnancy or breastfeeding

1. respiratory index ≤200 2. contraindications for the transfusion of donor immune plasma or history of prior reactions to blood transfusions 3. mechanical ventilation 4. the presence of chronic lung diseases with chronic respiratory failure. 5. the need for home continuous oxygen therapy before the onset of current disease. 6. serum creatinine level higher than 150 μmol / l 7. pregnancy or breastfeeding