Furthermore, the severity of COVID-19 was described differently: “Severe pneumonia ~37% ventilated at randomization”; “Patients who did not require noninvasive or invasive MV; ~15% hospitalized in ICU at baseline”; “Invasive or non-invasive MV, and/or intravenous infusion of any vasopressor or inotrope”; “Patients receiving supplemental oxygen or MV and had abnormal levels of at least two serum biomarkers (CRP, D dimer, LDH, or ferritin)”.; and “SpO2 < 92% on room air or receiving oxygen therapy, and CRP ≥ 75 mg/L”. This evidence concerns the gene CRP and susceptibility to pneumonia measurement.