A) For outpatients treated at home (without pneumonia and with peripheral blood oxygen saturation equal to or greater than 90% breathing ambient air): 1. Patients diagnosed with COVID-19, with uncomplicated disease. 2. Age: 18 years - 75 years old. 3. Acceptance in writing, with prior information. B) For hospitalized patients (with pneumonia or peripheral blood oxygen saturation less than 90% breathing ambient air or requiring mechanical ventilation): 1. Patients diagnosed with COVID-19, with mild or severe pneumonia hospitalized. 2. Age: 18 years - 75 years old. 3. Acceptance in writing, with prior information.

A) For outpatients treated at home (without pneumonia and with peripheral blood oxygen saturation equal to or greater than 90% breathing ambient air): 1. Patients diagnosed with COVID-19, with uncomplicated disease. 2. Age: 18 years - 75 years old. 3. Acceptance in writing, with prior information. B) For hospitalized patients (with pneumonia or peripheral blood oxygen saturation less than 90% breathing ambient air or requiring mechanical ventilation): 1. Patients diagnosed with COVID-19, with mild or severe pneumonia hospitalized. 2. Age: 18 years - 75 years old. 3. Acceptance in writing, with prior information.