key inclusion criteria: * has sars-cov-2-positive diagnostic test from a sample collected ≤72 hours prior to randomization, as defined by the protocol * low-risk symptomatic patient: has symptoms consistent with covid-19 (as determined by the investigator) with onset ≤7 days before randomization, and meets all of the following 8 criteria: 1. age ≤50 2. no obesity, with obesity defined as bmi ≥30 kg/m2 3. does not have cardiovascular disease or hypertension 4. does not have chronic lung disease or asthma 5. does not have type 1 or type 2 diabetes mellitus 6. does not have chronic kidney disease, with or without dialysis 7. does not have chronic liver disease 8. is not pregnant or * asymptomatic patient: has had no symptoms consistent with covid-19 (as determined by the investigator) occurring at any time \<2 months prior to randomization * maintains o2 saturation ≥93% on room air key

key inclusion criteria: * has sars-cov-2-positive diagnostic test from a sample collected ≤72 hours prior to randomization, as defined by the protocol * low-risk symptomatic patient: has symptoms consistent with covid-19 (as determined by the investigator) with onset ≤7 days before randomization, and meets all of the following 8 criteria: 1. age ≤50 2. no obesity, with obesity defined as bmi ≥30 kg/m2 3. does not have cardiovascular disease or hypertension 4. does not have chronic lung disease or asthma 5. does not have type 1 or type 2 diabetes mellitus 6. does not have chronic kidney disease, with or without dialysis 7. does not have chronic liver disease 8. is not pregnant or * asymptomatic patient: has had no symptoms consistent with covid-19 (as determined by the investigator) occurring at any time \<2 months prior to randomization * maintains o2 saturation ≥93% on room air key

key inclusion criteria: has sars-cov-2-positive diagnostic test from a sample collected ≤72 hours prior to randomization, as defined by the protocol low-risk symptomatic patient: has symptoms consistent with covid-19 (as determined by the investigator) with onset ≤7 days before randomization, and meets all of the following 8 criteria: age ≤50 no obesity, with obesity defined as bmi ≥30 kg/m2 does not have cardiovascular disease or hypertension does not have chronic lung disease or asthma does not have type 1 or type 2 diabetes mellitus does not have chronic kidney disease, with or without dialysis does not have chronic liver disease is not pregnant or asymptomatic patient: has had no symptoms consistent with covid-19 (as determined by the investigator) occurring at any time <2 months prior to randomization maintains o2 saturation ≥93% on room air key

key inclusion criteria: has sars-cov-2-positive diagnostic test from a sample collected ≤72 hours prior to randomization, as defined by the protocol low-risk symptomatic patient: has symptoms consistent with covid-19 (as determined by the investigator) with onset ≤7 days before randomization, and meets all of the following 8 criteria: age ≤50 no obesity, with obesity defined as bmi ≥30 kg/m2 does not have cardiovascular disease or hypertension does not have chronic lung disease or asthma does not have type 1 or type 2 diabetes mellitus does not have chronic kidney disease, with or without dialysis does not have chronic liver disease is not pregnant or asymptomatic patient: has had no symptoms consistent with covid-19 (as determined by the investigator) occurring at any time <2 months prior to randomization maintains o2 saturation ≥93% on room air key

key inclusion criteria: - has sars-cov-2-positive diagnostic test from a sample collected ≤72 hours prior to randomization, as defined by the protocol - low-risk symptomatic patient: has symptoms consistent with covid-19 (as determined by the investigator) with onset ≤7 days before randomization, and meets all of the following 8 criteria: 1. age ≤50 2. no obesity, with obesity defined as bmi ≥30 kg/m2 3. does not have cardiovascular disease or hypertension 4. does not have chronic lung disease or asthma 5. does not have type 1 or type 2 diabetes mellitus 6. does not have chronic kidney disease, with or without dialysis 7. does not have chronic liver disease 8. is not pregnant or - asymptomatic patient: has had no symptoms consistent with covid-19 (as determined by the investigator) occurring at any time <2 months prior to randomization - maintains o2 saturation ≥93% on room air key

key inclusion criteria: - has sars-cov-2-positive diagnostic test from a sample collected ≤72 hours prior to randomization, as defined by the protocol - low-risk symptomatic patient: has symptoms consistent with covid-19 (as determined by the investigator) with onset ≤7 days before randomization, and meets all of the following 8 criteria: 1. age ≤50 2. no obesity, with obesity defined as bmi ≥30 kg/m2 3. does not have cardiovascular disease or hypertension 4. does not have chronic lung disease or asthma 5. does not have type 1 or type 2 diabetes mellitus 6. does not have chronic kidney disease, with or without dialysis 7. does not have chronic liver disease 8. is not pregnant or - asymptomatic patient: has had no symptoms consistent with covid-19 (as determined by the investigator) occurring at any time <2 months prior to randomization - maintains o2 saturation ≥93% on room air key

key inclusion criteria: - has sars-cov-2-positive antigen or molecular diagnostic test ≤72 hours prior to randomization, as defined by the protocol - low-risk symptomatic patient: has symptoms consistent with covid-19 (as determined by the investigator) with onset ≤7 days before randomization, and meets all of the following 8 criteria: 1. age ≤50 2. no obesity, with obesity defined as bmi ≥30 kg/m2 3. does not have cardiovascular disease or hypertension 4. does not have chronic lung disease or asthma 5. does not have type 1 or type 2 diabetes mellitus 6. does not have chronic kidney disease, with or without dialysis 7. does not have chronic liver disease 8. is not pregnant or - asymptomatic patient: has had no symptoms consistent with covid-19 (as determined by the investigator) occurring at any time <2 months prior to randomization - maintains o2 saturation ≥93% on room air key

key inclusion criteria: - has sars-cov-2-positive antigen or molecular diagnostic test ≤72 hours prior to randomization, as defined by the protocol - low-risk symptomatic patient: has symptoms consistent with covid-19 (as determined by the investigator) with onset ≤7 days before randomization, and meets all of the following 8 criteria: 1. age ≤50 2. no obesity, with obesity defined as bmi ≥30 kg/m2 3. does not have cardiovascular disease or hypertension 4. does not have chronic lung disease or asthma 5. does not have type 1 or type 2 diabetes mellitus 6. does not have chronic kidney disease, with or without dialysis 7. does not have chronic liver disease 8. is not pregnant or - asymptomatic patient: has had no symptoms consistent with covid-19 (as determined by the investigator) occurring at any time <2 months prior to randomization - maintains o2 saturation ≥93% on room air key