inclusion criteria: - inclusion criteria: - 18 years and above. - covid-19 infection confirmed with a laboratory sars-cov-2 rt-pcr nasal swab or antigen test. covid-19 test specimen must be collected 48 hours prior to screenings. - mild covid-19 infection defined as: - no pneumonia (negative by chest auscultation or chest x ray). - no shortness of breath. - no tachypnea (respiratory rate <20 breathes/min) - no hypoxia (oxygen saturation >93% on ra) - fever <38 degrees. - no chest pain. - no mental status change. - asymptomatic participants must be high risk defined as (any of the following): - smokers (at least 5 cigarettes per day) - bmi (> 40 kg/m2) - history of cardiac or chronic lung disease - clotting predisposing conditions (hemophilia, von willebrand's disease) - sickle cell disease - immunocompromised such as hiv , cancer , on immunosuppressant medications

inclusion criteria: - inclusion criteria: - 18 years and above. - covid-19 infection confirmed with a laboratory sars-cov-2 rt-pcr nasal swab or antigen test. covid-19 test specimen must be collected 48 hours prior to screenings. - mild covid-19 infection defined as: - no pneumonia (negative by chest auscultation or chest x ray). - no shortness of breath. - no tachypnea (respiratory rate <20 breathes/min) - no hypoxia (oxygen saturation >93% on ra) - fever <38 degrees. - no chest pain. - no mental status change. - asymptomatic participants must be high risk defined as (any of the following): - smokers (at least 5 cigarettes per day) - bmi (> 40 kg/m2) - history of cardiac or chronic lung disease - clotting predisposing conditions (hemophilia, von willebrand's disease) - sickle cell disease - immunocompromised such as hiv , cancer , on immunosuppressant medications