inclusion criteria: 1. age ≥18 years at time of signing informed consent form 2. laboratory (rt-pcr) confirmed covid-19. 3. lung involvement confirmed with chest imaging 4. hospitalised with: * fever - ≥36.7℃ -axilla or oral temperature ≥ 38.0 ℃ or ≥38.6°c tympanic or rectal or * and at least one of respiratory rate \>24/min or cough 5. ≤8 days since illness onset 6. willingness of study participant to accept randomization to any assigned treatment arm. 7. must agree not to enroll in another study of an investigational agent prior to completion of day 28 of study.

inclusion criteria: 1. age ≥18 years at time of signing informed consent form 2. laboratory (rt-pcr) confirmed covid-19. 3. lung involvement confirmed with chest imaging 4. hospitalised with: * fever - ≥36.7℃ -axilla or oral temperature ≥ 38.0 ℃ or ≥38.6°c tympanic or rectal or * and at least one of respiratory rate \>24/min or cough 5. ≤8 days since illness onset 6. willingness of study participant to accept randomization to any assigned treatment arm. 7. must agree not to enroll in another study of an investigational agent prior to completion of day 28 of study.

inclusion criteria: age ≥18 years at time of signing informed consent form laboratory (rt-pcr) confirmed covid-19. lung involvement confirmed with chest imaging hospitalised with: fever - ≥36.7℃ -axilla or oral temperature ≥ 38.0 ℃ or ≥38.6°c tympanic or rectal or and at least one of respiratory rate >24/min or cough ≤8 days since illness onset willingness of study participant to accept randomization to any assigned treatment arm. must agree not to enroll in another study of an investigational agent prior to completion of day 28 of study.

inclusion criteria: age ≥18 years at time of signing informed consent form laboratory (rt-pcr) confirmed covid-19. lung involvement confirmed with chest imaging hospitalised with: fever - ≥36.7℃ -axilla or oral temperature ≥ 38.0 ℃ or ≥38.6°c tympanic or rectal or and at least one of respiratory rate >24/min or cough ≤8 days since illness onset willingness of study participant to accept randomization to any assigned treatment arm. must agree not to enroll in another study of an investigational agent prior to completion of day 28 of study.

inclusion criteria: 1. age ≥18 years at time of signing informed consent form 2. laboratory (rt-pcr) confirmed covid-19. 3. lung involvement confirmed with chest imaging 4. hospitalised with: - fever - ≥36.7℃ -axilla or oral temperature ≥ 38.0 ℃ or ≥38.6°c tympanic or rectal or - and at least one of respiratory rate >24/min or cough 5. ≤8 days since illness onset 6. willingness of study participant to accept randomization to any assigned treatment arm. 7. must agree not to enroll in another study of an investigational agent prior to completion of day 28 of study.

inclusion criteria: 1. age ≥18 years at time of signing informed consent form 2. laboratory (rt-pcr) confirmed covid-19. 3. lung involvement confirmed with chest imaging 4. hospitalised with: - fever - ≥36.7℃ -axilla or oral temperature ≥ 38.0 ℃ or ≥38.6°c tympanic or rectal or - and at least one of respiratory rate >24/min or cough 5. ≤8 days since illness onset 6. willingness of study participant to accept randomization to any assigned treatment arm. 7. must agree not to enroll in another study of an investigational agent prior to completion of day 28 of study.