IL‐6: interleukin 6; JAK: Janus kinase; mAb:  monoclonal antibody; RNA: ribonucleic acid; RECOVERY: Randomised Evaluation of COVID‐19 Therapy; REMAP‐CAP: Randomized, Embedded, Multifactorial, Adaptive Platform Trial for Community‐Acquired Pneumonia; ACTT: Adaptive COVID‐19 Treatment Trial; RCT: randomised controlled trial; ↓: decrease; ↑: increase; WHO: World Health Organization. This evidence concerns the gene IL6 and COVID-19.