inclusion criteria: males and females aged > 18 years; suspected or confirmed infection by sars-cov2; presenting with one of the following: need for oxygen supplementation > 4 l/min, or need for high-flow nasal canula, or need for non-invasive ventilation, or need for mechanical ventilation.

inclusion criteria: males and females aged > 18 years; suspected or confirmed infection by sars-cov2; presenting with one of the following: need for oxygen supplementation > 4 l/min, or need for high-flow nasal canula, or need for non-invasive ventilation, or need for mechanical ventilation.

inclusion criteria: 1. males and females aged > 18 years; 2. suspected or confirmed infection by sars-cov2; presenting with one of the following: - need for oxygen supplementation > 4 l/min, or - need for high-flow nasal canula, or - need for non-invasive ventilation, or - need for mechanical ventilation.

inclusion criteria: 1. males and females aged > 18 years; 2. suspected or confirmed infection by sars-cov2; presenting with one of the following: - need for oxygen supplementation > 4 l/min, or - need for high-flow nasal canula, or - need for non-invasive ventilation, or - need for mechanical ventilation.