1.Oxygenation improvement as measured by Spo2 and ABG <br/ >2.Duration of supplemental oxygen requirement <br/ >3.Decrease in the need for invasive mechanical ventilation.Timepoint: Patient is improved or getting worse to receive mechanical ventilation or death. <br/ >Monitored on daily basis while on receiving study intervention <br/ >till the study period <br/ > <br/ >the study ends after patient improvement or worsens to mechanical ventilation

1.Oxygenation improvement as measured by Spo2 and ABG <br/ >2.Duration of supplemental oxygen requirement <br/ >3.Decrease in the need for invasive mechanical ventilation.Timepoint: Patient is improved or getting worse to receive mechanical ventilation or death. <br/ >Monitored on daily basis while on receiving study intervention <br/ >till the study period <br/ > <br/ >the study ends after patient improvement or worsens to mechanical ventilation

N/A

N/A

1.Oxygenation improvement as measured by Spo2 and ABG <br/ >2.Duration of supplemental oxygen requirement <br/ >3.Decrease in the need for invasive mechanical ventilation.Timepoint: Patient is improved or getting worse to receive mechanical ventilation or death. <br/ >Monitored on daily basis while on receiving study intervention <br/ >till the study period <br/ > <br/ >the study ends after patient improvement or worsens to mechanical ventilation

1.Oxygenation improvement as measured by Spo2 and ABG <br/ >2.Duration of supplemental oxygen requirement <br/ >3.Decrease in the need for invasive mechanical ventilation.Timepoint: Patient is improved or getting worse to receive mechanical ventilation or death. <br/ >Monitored on daily basis while on receiving study intervention <br/ >till the study period <br/ > <br/ >the study ends after patient improvement or worsens to mechanical ventilation