IL6 and COVID-19: Accumulating evidence strongly suggests that most of the severe COVID-19 patients may manifest the excessive and uncontrolled release of pro-inflammatory cytokines (including interleukin-6 (IL-6), tumour necrosis factor-α, C-reactive protein (CRP)), signifying cytokine storm which could lead to acute respiratory distress syndrome (ARDS) and death 1, 2.