inclusion criteria: ≥ 18 years old ability to understand and the willingness to sign a written informed consent document before any study procedure coronavirus infection, severe acute respiratory syndrome (sars-cov)-2 confirmed by the polymerase chain reaction (pcr) test ≤ 4 days before randomization. hospitalized radiographic evidence of pulmonary infiltrates

inclusion criteria: ≥ 18 years old ability to understand and the willingness to sign a written informed consent document before any study procedure coronavirus infection, severe acute respiratory syndrome (sars-cov)-2 confirmed by the polymerase chain reaction (pcr) test ≤ 4 days before randomization. hospitalized radiographic evidence of pulmonary infiltrates

inclusion criteria: 1. ≥ 18 years old 2. ability to understand and the willingness to sign a written informed consent document before any study procedure 3. coronavirus infection, severe acute respiratory syndrome (sars-cov)-2 confirmed by the polymerase chain reaction (pcr) test ≤ 4 days before randomization. 4. hospitalized 5. radiographic evidence of pulmonary infiltrates

inclusion criteria: 1. ≥ 18 years old 2. ability to understand and the willingness to sign a written informed consent document before any study procedure 3. coronavirus infection, severe acute respiratory syndrome (sars-cov)-2 confirmed by the polymerase chain reaction (pcr) test ≤ 4 days before randomization. 4. hospitalized 5. radiographic evidence of pulmonary infiltrates