Coronavirus Response - Active Support for Hospitalised Covid-19 Patients

Inclusion Criteria: * Adults age 40 years and older * with suspected or confirmed acute COVID-19 infection. Acute COVID-19 infection is suspected in the presence of a fever and at least one symptom of respiratory disease e.g. cough, difficulty breathing, signs of hypoxia. The clinician may suspect COVID-19 infection if i) the patient lives in or has recently travelled to an area with COVID-19 transmission; ii) the patient had recent contact with a confirmed or probable COVID-19 case, or iii) no alternative diagnosis fully explains the clinical presentation * requiring hospitalisation Exclusion Criteria: * Women known to be pregnant * Patients hospitalised without symptoms of acute COVID-19 infection should not be recruited even if they test positive for COVID-19 * Patients already receiving mechanical ventilation * Patients with a definite indication or contraindication for any of the trial treatments. * Patients who are very severely frail (completely dependent and approaching end of life who typically they could not recover even from a mild illness) or terminally ill should not be recruited.