Both sexes, age above 18 years, presenting with one or more of the following symptoms of acute respiratory infection, such as anosmia and / or dysgeusia, cough, fever above 37.8ºC, dyspnoea, sore throat, coryza, confirmed diagnosis of the disease (SARS-Cov-2) in the last 5 days by one of the current tests (with approval from a state or national regulatory agency), pending laboratory test result (SARS-Cov-2), but patient with a high clinical suspicion for COVID-19 indicated by the mandatory observation of all the following items, cough lasting less than or equal to 10 days, pulmonary infiltrates in the chest image (simple chest X-ray or computed tomography), hypoxemia defined as SaO2 less than or equal to 94%, no alternative explanation for symptoms of acute respiratory infection, recent contact with persons with suspected COVID-19 or recent return from travel from a place with a high number of cases, computed tomography scan of the chest with suggestive changes, performed no more than 24 hours before admission.

Both sexes, age above 18 years, presenting with one or more of the following symptoms of acute respiratory infection, such as anosmia and / or dysgeusia, cough, fever above 37.8ºC, dyspnoea, sore throat, coryza, confirmed diagnosis of the disease (SARS-Cov-2) in the last 5 days by one of the current tests (with approval from a state or national regulatory agency), pending laboratory test result (SARS-Cov-2), but patient with a high clinical suspicion for COVID-19 indicated by the mandatory observation of all the following items, cough lasting less than or equal to 10 days, pulmonary infiltrates in the chest image (simple chest X-ray or computed tomography), hypoxemia defined as SaO2 less than or equal to 94%, no alternative explanation for symptoms of acute respiratory infection, recent contact with persons with suspected COVID-19 or recent return from travel from a place with a high number of cases, computed tomography scan of the chest with suggestive changes, performed no more than 24 hours before admission.