Patients aged at least 18 years, hospitalised, confirmed SARS-CoV-2 infection by nucleic acid based testing (RT-PCR, CB-NAAT, or TrueNAT) or antigen testing, Severe COVID-19 pneumonia (SpO2 <94%, PaO2/FiO2 <300 mm Hg or respiratory rate(RR) >30 breaths/min) with lack of response to Dexamethasone 6 mg after 48 hours [defined as similar or worsening oxygen requirement (margin of error is 5% Fio2 for high flow nasal cannula, 2 L/min for NRBM, and 1 L/min for low flow oxygen devices)] <br/ >

Patients aged at least 18 years, hospitalised, confirmed SARS-CoV-2 infection by nucleic acid based testing (RT-PCR, CB-NAAT, or TrueNAT) or antigen testing, Severe COVID-19 pneumonia (SpO2 <94%, PaO2/FiO2 <300 mm Hg or respiratory rate(RR) >30 breaths/min) with lack of response to Dexamethasone 6 mg after 48 hours [defined as similar or worsening oxygen requirement (margin of error is 5% Fio2 for high flow nasal cannula, 2 L/min for NRBM, and 1 L/min for low flow oxygen devices)] <br/ >

Patients aged at least 18 years, hospitalised, confirmed SARS-CoV-2 infection by nucleic acid based testing (RT-PCR, CB-NAAT, or TrueNAT) or antigen testing, Severe COVID-19 pneumonia (SpO2 <94%, PaO2/FiO2 <300 mm Hg or respiratory rate(RR) >30 breaths/min) with lack of response to Dexamethasone 6 mg after 48 hours [defined as similar or worsening oxygen requirement (margin of error is 5% Fio2 for high flow nasal cannula, 2 L/min for NRBM, and 1 L/min for low flow oxygen devices)] <br/ >

Patients aged at least 18 years, hospitalised, confirmed SARS-CoV-2 infection by nucleic acid based testing (RT-PCR, CB-NAAT, or TrueNAT) or antigen testing, Severe COVID-19 pneumonia (SpO2 <94%, PaO2/FiO2 <300 mm Hg or respiratory rate(RR) >30 breaths/min) with lack of response to Dexamethasone 6 mg after 48 hours [defined as similar or worsening oxygen requirement (margin of error is 5% Fio2 for high flow nasal cannula, 2 L/min for NRBM, and 1 L/min for low flow oxygen devices)] <br/ >