inclusion criteria 1. subjects must be 18 years of age or older 2. close contact exposure (as defined by cdc guidelines) to person with covid-19 within 96 hours of randomization (and 120 hours of receipt of plasma) exclusion criteria 1. receipt of any blood product in past 120 days. 2. medical, psychiatric,cognitive illness or recreational drug/alcohol use that in the opinion of the principal investigator, would affect subject safety and/or compliance. 3. symptoms consistent with covid-19 infection (fevers, acute onset cough, shortness of breath) at time of screening. 4. laboratory evidence of covid-19 infection at time of screening. 5. history or known laboratory evidence of previous covid-19 infection. 6. history of prior reactions to transfusion blood products. 7. inability to complete therapy with the study product within 24 hours after randomization.

inclusion criteria 1. subjects must be 18 years of age or older 2. close contact exposure (as defined by cdc guidelines) to person with covid-19 within 96 hours of randomization (and 120 hours of receipt of plasma) exclusion criteria 1. receipt of any blood product in past 120 days. 2. medical, psychiatric,cognitive illness or recreational drug/alcohol use that in the opinion of the principal investigator, would affect subject safety and/or compliance. 3. symptoms consistent with covid-19 infection (fevers, acute onset cough, shortness of breath) at time of screening. 4. laboratory evidence of covid-19 infection at time of screening. 5. history or known laboratory evidence of previous covid-19 infection. 6. history of prior reactions to transfusion blood products. 7. inability to complete therapy with the study product within 24 hours after randomization.

inclusion criteria subjects must be 18 years of age or older close contact exposure (as defined by cdc guidelines) to person with covid-19 within 96 hours of randomization (and 120 hours of receipt of plasma) exclusion criteria receipt of any blood product in past 120 days. medical, psychiatric,cognitive illness or recreational drug/alcohol use that in the opinion of the principal investigator, would affect subject safety and/or compliance. symptoms consistent with covid-19 infection (fevers, acute onset cough, shortness of breath) at time of screening. laboratory evidence of covid-19 infection at time of screening. history or known laboratory evidence of previous covid-19 infection. history of prior reactions to transfusion blood products. inability to complete therapy with the study product within 24 hours after randomization.

inclusion criteria subjects must be 18 years of age or older close contact exposure (as defined by cdc guidelines) to person with covid-19 within 96 hours of randomization (and 120 hours of receipt of plasma) exclusion criteria receipt of any blood product in past 120 days. medical, psychiatric,cognitive illness or recreational drug/alcohol use that in the opinion of the principal investigator, would affect subject safety and/or compliance. symptoms consistent with covid-19 infection (fevers, acute onset cough, shortness of breath) at time of screening. laboratory evidence of covid-19 infection at time of screening. history or known laboratory evidence of previous covid-19 infection. history of prior reactions to transfusion blood products. inability to complete therapy with the study product within 24 hours after randomization.

inclusion criteria 1. subjects must be 18 years of age or older 2. close contact exposure (as defined by cdc guidelines) to person with covid-19 within 96 hours of randomization (and 120 hours of receipt of plasma) exclusion criteria 1. receipt of any blood product in past 120 days. 2. medical, psychiatric,cognitive illness or recreational drug/alcohol use that in the opinion of the principal investigator, would affect subject safety and/or compliance. 3. symptoms consistent with covid-19 infection (fevers, acute onset cough, shortness of breath) at time of screening. 4. laboratory evidence of covid-19 infection at time of screening. 5. history or known laboratory evidence of previous covid-19 infection. 6. history of prior reactions to transfusion blood products. 7. inability to complete therapy with the study product within 24 hours after randomization.

inclusion criteria 1. subjects must be 18 years of age or older 2. close contact exposure (as defined by cdc guidelines) to person with covid-19 within 96 hours of randomization (and 120 hours of receipt of plasma) exclusion criteria 1. receipt of any blood product in past 120 days. 2. medical, psychiatric,cognitive illness or recreational drug/alcohol use that in the opinion of the principal investigator, would affect subject safety and/or compliance. 3. symptoms consistent with covid-19 infection (fevers, acute onset cough, shortness of breath) at time of screening. 4. laboratory evidence of covid-19 infection at time of screening. 5. history or known laboratory evidence of previous covid-19 infection. 6. history of prior reactions to transfusion blood products. 7. inability to complete therapy with the study product within 24 hours after randomization.