Current participant inclusion criteria as of 09/09/2020: 1. Less than 3 days onset of COVID-19 suspected symptoms 2. Age between 40 - 80 years 3. Body mass index between 18 - 35 kg/m² 4. >50% calculated risk for severe clinical progression Previous participant inclusion criteria: 1. Less than 3 days onset of COVID-19 suspected symptoms 2. Age between 40 - 80 years 3. Body mass index between 18 - 35 kg/m² 4. History of DM, hypertension, CPOD, or other chronic disease

Current participant inclusion criteria as of 09/09/2020: 1. Less than 3 days onset of COVID-19 suspected symptoms 2. Age between 40 - 80 years 3. Body mass index between 18 - 35 kg/m² 4. >50% calculated risk for severe clinical progression Previous participant inclusion criteria: 1. Less than 3 days onset of COVID-19 suspected symptoms 2. Age between 40 - 80 years 3. Body mass index between 18 - 35 kg/m² 4. History of DM, hypertension, CPOD, or other chronic disease