inclusion criteria: symptomatic\* covid-2 infection confirmed by a positive covid-19 test requiring hospitalization \[or equivalent health care setting\] with any two of the following high-risk features: * age ≥ 60 years * obesity (bmi \>30) * diabetes mellitus * hypertension (on treatment or recently diagnosed)h * coronary artery, cerebrovascular or peripheral vascular disease∫ * chronic kidney disease (ckd) \[egfr \<60 ml/min/1.73m2 using the ckd epidemiology collaboration equation * admission troponin \>99% of uln * admission d-dimer \> 1µg/ml * o2 saturation ≤93% e on room air or need for any o2 therapy

inclusion criteria: symptomatic\* covid-2 infection confirmed by a positive covid-19 test requiring hospitalization \[or equivalent health care setting\] with any two of the following high-risk features: * age ≥ 60 years * obesity (bmi \>30) * diabetes mellitus * hypertension (on treatment or recently diagnosed)h * coronary artery, cerebrovascular or peripheral vascular disease∫ * chronic kidney disease (ckd) \[egfr \<60 ml/min/1.73m2 using the ckd epidemiology collaboration equation * admission troponin \>99% of uln * admission d-dimer \> 1µg/ml * o2 saturation ≤93% e on room air or need for any o2 therapy

inclusion criteria: symptomatic* covid-2 infection confirmed by a positive covid-19 test requiring hospitalization [or equivalent health care setting] with any two of the following high-risk features: age ≥ 60 years obesity (bmi >30) diabetes mellitus hypertension (on treatment or recently diagnosed)h coronary artery, cerebrovascular or peripheral vascular disease∫ chronic kidney disease (ckd) [egfr <60 ml/min/1.73m2 using the ckd epidemiology collaboration equation admission troponin >99% of uln admission d-dimer > 1µg/ml o2 saturation ≤93% e on room air or need for any o2 therapy

inclusion criteria: symptomatic* covid-2 infection confirmed by a positive covid-19 test requiring hospitalization [or equivalent health care setting] with any two of the following high-risk features: age ≥ 60 years obesity (bmi >30) diabetes mellitus hypertension (on treatment or recently diagnosed)h coronary artery, cerebrovascular or peripheral vascular disease∫ chronic kidney disease (ckd) [egfr <60 ml/min/1.73m2 using the ckd epidemiology collaboration equation admission troponin >99% of uln admission d-dimer > 1µg/ml o2 saturation ≤93% e on room air or need for any o2 therapy

inclusion criteria: symptomatic* covid-2 infection confirmed by a positive covid-19 test requiring hospitalization [or equivalent health care setting] with any two of the following high-risk features: - age ≥ 60 years - obesity (bmi >30) - diabetes mellitus - hypertension (on treatment or recently diagnosed)h - coronary artery, cerebrovascular or peripheral vascular disease∫ - chronic kidney disease (ckd) [egfr <60 ml/min/1.73m2 using the ckd epidemiology collaboration equation - admission troponin >99% of uln - admission d-dimer > 1µg/ml - o2 saturation ≤93% e on room air or ≤95% on o2 therapy at 1-4 lpm

inclusion criteria: symptomatic* covid-2 infection confirmed by a positive covid-19 test requiring hospitalization [or equivalent health care setting] with any two of the following high-risk features: - age ≥ 60 years - obesity (bmi >30) - diabetes mellitus - hypertension (on treatment or recently diagnosed)h - coronary artery, cerebrovascular or peripheral vascular disease∫ - chronic kidney disease (ckd) [egfr <60 ml/min/1.73m2 using the ckd epidemiology collaboration equation - admission troponin >99% of uln - admission d-dimer > 1µg/ml - o2 saturation ≤93% e on room air or ≤95% on o2 therapy at 1-4 lpm