Biomarkers for severe COVID-19

Coronavirus Disease 2019 (COVID-19) has a wide spectrum of clinical severity. Studies have estimated that while 30–60% of COVID-19 cases are asymptomatic or mildly symptomatic, 5% of symptomatic cases are critically ill [1]. Severe COVID-19 is usually characterized by respiratory compromise and multiorgan failure. Clinical or demographic risk factors for severe disease include older age, male sex, and chronic health conditions, especially diabetes mellitus, cardiovascular disease, immunosuppression and obesity [1].