key inclusion criteria: 1. male or female adults above 18 years (not tested in children yet) 2. informed consent for participation in the study 3. virological diagnosis of sars-cov2 infection (pcr) 4. hospitalized due to clinical/instrumental diagnosis of covid-19 infection 5. oxygen saturation at rest in ambient air ≤94% 6. patients who are in moderate to severe ards as defined by pao2/fio2 ratio of \< 200 key

key inclusion criteria: 1. male or female adults above 18 years (not tested in children yet) 2. informed consent for participation in the study 3. virological diagnosis of sars-cov2 infection (pcr) 4. hospitalized due to clinical/instrumental diagnosis of covid-19 infection 5. oxygen saturation at rest in ambient air ≤94% 6. patients who are in moderate to severe ards as defined by pao2/fio2 ratio of \< 200 key

key inclusion criteria: male or female adults above 18 years (not tested in children yet) informed consent for participation in the study virological diagnosis of sars-cov2 infection (pcr) hospitalized due to clinical/instrumental diagnosis of covid-19 infection oxygen saturation at rest in ambient air ≤94% patients who are in moderate to severe ards as defined by pao2/fio2 ratio of < 200 key

key inclusion criteria: male or female adults above 18 years (not tested in children yet) informed consent for participation in the study virological diagnosis of sars-cov2 infection (pcr) hospitalized due to clinical/instrumental diagnosis of covid-19 infection oxygen saturation at rest in ambient air ≤94% patients who are in moderate to severe ards as defined by pao2/fio2 ratio of < 200 key

key inclusion criteria: 1. male or female adults above 18 years (not tested in children yet) 2. informed consent for participation in the study 3. virological diagnosis of sars-cov2 infection (pcr) 4. hospitalized due to clinical/instrumental diagnosis of covid-19 infection 5. oxygen saturation at rest in ambient air ≤94% 6. patients who are in moderate to severe ards as defined by pao2/fio2 ratio of < 200 key

key inclusion criteria: 1. male or female adults above 18 years (not tested in children yet) 2. informed consent for participation in the study 3. virological diagnosis of sars-cov2 infection (pcr) 4. hospitalized due to clinical/instrumental diagnosis of covid-19 infection 5. oxygen saturation at rest in ambient air ≤94% 6. patients who are in moderate to severe ards as defined by pao2/fio2 ratio of < 200 key

inclusion criteria: 1. male or female adults above 18 years (not tested in children yet) 2. informed consent for participation in the study 3. virological diagnosis of sars-cov2 infection (pcr) 4. hospitalized due to clinical/instrumental diagnosis of covid-19 infection 5. oxygen saturation at rest in ambient air ≤94% 6. patients who are in moderate to severe ards as defined by pao2/fio2 ratio of < 200 or more than 25% detoriation from the immediate previous value.

inclusion criteria: 1. male or female adults above 18 years (not tested in children yet) 2. informed consent for participation in the study 3. virological diagnosis of sars-cov2 infection (pcr) 4. hospitalized due to clinical/instrumental diagnosis of covid-19 infection 5. oxygen saturation at rest in ambient air ≤94% 6. patients who are in moderate to severe ards as defined by pao2/fio2 ratio of < 200 or more than 25% detoriation from the immediate previous value.