inclusion criteria: * male or non-pregnant female adults, ≥18 years old of age at the time of randomization; * participants should have at least one of covid-19 risk factor; * participants should have at least 2 covid-19 related symptoms; * has symptoms consistent with covid-19 as determined by the investigator with onset ≤10 days before randomization; * first positive sars-cov-2 viral infection tested (pcr or antigen-based diagnostic tests) in samples collected ≤5 days prior to start of the infusion;

inclusion criteria: * male or non-pregnant female adults, ≥18 years old of age at the time of randomization; * participants should have at least one of covid-19 risk factor; * participants should have at least 2 covid-19 related symptoms; * has symptoms consistent with covid-19 as determined by the investigator with onset ≤10 days before randomization; * first positive sars-cov-2 viral infection tested (pcr or antigen-based diagnostic tests) in samples collected ≤5 days prior to start of the infusion;

inclusion criteria: male or non-pregnant female adults, ≥18 years old of age at the time of randomization; participants should have at least one of covid-19 risk factor; participants should have at least 2 covid-19 related symptoms; has symptoms consistent with covid-19 as determined by the investigator with onset ≤10 days before randomization; first positive sars-cov-2 viral infection tested (pcr or antigen-based diagnostic tests) in samples collected ≤5 days prior to start of the infusion;

inclusion criteria: male or non-pregnant female adults, ≥18 years old of age at the time of randomization; participants should have at least one of covid-19 risk factor; participants should have at least 2 covid-19 related symptoms; has symptoms consistent with covid-19 as determined by the investigator with onset ≤10 days before randomization; first positive sars-cov-2 viral infection tested (pcr or antigen-based diagnostic tests) in samples collected ≤5 days prior to start of the infusion;