IL6 and COVID-19: Although many blood biomarkers including lymphopenia, inflammatory indices such as high levels of circulating pro‐inflammatory cytokines specifically inerleukin‐6 (IL‐6) and TNF‐α, ferritin and coagulation factors have been reported to be associated with severe COVID‐19 [1], their predictive value for the disease course and severity is not yet fully established [7, 8].