Improvement of COVID-19 disease status defined by the percentage of subjects reporting each severity rating on an 8-point ordinal scale [Time Frame: Day 29] The ordinal scale is an assessment of the clinical status at the first assessment of a given study day. The scale is as follows: 1) Death, 2) Hospitalized, on invasive mechanical ventilation or extracorporeal membrane oxygenation (ECMO), 3) Hospitalized, on non-invasive ventilation or high flow oxygen devices, 4) Hospitalized, requiring supplemental oxygen, 5) Hospitalized, not requiring supplemental oxygen - requiring ongoing medical care (COVID-19 related or otherwise), 6) Hospitalized, not requiring supplemental oxygen - no longer requires ongoing medical care, 7) Not hospitalized, limitation on activities and/or requiring home oxygen, 8) Not hospitalized, no limitations on activities.

Improvement of COVID-19 disease status defined by the percentage of subjects reporting each severity rating on an 8-point ordinal scale [Time Frame: Day 29] The ordinal scale is an assessment of the clinical status at the first assessment of a given study day. The scale is as follows: 1) Death, 2) Hospitalized, on invasive mechanical ventilation or extracorporeal membrane oxygenation (ECMO), 3) Hospitalized, on non-invasive ventilation or high flow oxygen devices, 4) Hospitalized, requiring supplemental oxygen, 5) Hospitalized, not requiring supplemental oxygen - requiring ongoing medical care (COVID-19 related or otherwise), 6) Hospitalized, not requiring supplemental oxygen - no longer requires ongoing medical care, 7) Not hospitalized, limitation on activities and/or requiring home oxygen, 8) Not hospitalized, no limitations on activities.