inclusion criteria: 18 years old or older molecular (pcrna) diagnosis of sars-cov-2 infection chest imaging studies consistent with covid-19 pneumonia hyperferritinemia (>700 ng/ml) fever >38 degrees c any three of the following: elevated d-dimer (> 500 ng/ml) thrombocytopenia (< 130,000/mm3) leucopenia (wbc <3500/mm3) or lymphopenia (<1000/mm3) elevated ast or alt (> 2x uln) elevated ldh (> 2x uln) crp > 100 mg/l

inclusion criteria: 18 years old or older molecular (pcrna) diagnosis of sars-cov-2 infection chest imaging studies consistent with covid-19 pneumonia hyperferritinemia (>700 ng/ml) fever >38 degrees c any three of the following: elevated d-dimer (> 500 ng/ml) thrombocytopenia (< 130,000/mm3) leucopenia (wbc <3500/mm3) or lymphopenia (<1000/mm3) elevated ast or alt (> 2x uln) elevated ldh (> 2x uln) crp > 100 mg/l

inclusion criteria: 1. 18 years old or older 2. molecular (pcrna) diagnosis of sars-cov-2 infection 3. chest imaging studies consistent with covid-19 pneumonia 4. hyperferritinemia (>700 ng/ml) 5. fever >38 degrees c 6. any three of the following: 1. elevated d-dimer (> 500 ng/ml) 2. thrombocytopenia (< 130,000/mm3) 3. leucopenia (wbc <3500/mm3) or lymphopenia (<1000/mm3) 4. elevated ast or alt (> 2x uln) 5. elevated ldh (> 2x uln) 6. crp > 100 mg/l

inclusion criteria: 1. 18 years old or older 2. molecular (pcrna) diagnosis of sars-cov-2 infection 3. chest imaging studies consistent with covid-19 pneumonia 4. hyperferritinemia (>700 ng/ml) 5. fever >38 degrees c 6. any three of the following: 1. elevated d-dimer (> 500 ng/ml) 2. thrombocytopenia (< 130,000/mm3) 3. leucopenia (wbc <3500/mm3) or lymphopenia (<1000/mm3) 4. elevated ast or alt (> 2x uln) 5. elevated ldh (> 2x uln) 6. crp > 100 mg/l