The COMBAT Consortium generated an integrated blood atlas of COVID-19, influenza, and sepsis which revealed a shared neutrophil signature, alongside elevated plasmablast frequencies, type-2 T cell responses, and plasma concentrations of inflammatory cytokines (such as IL-6 and IL-8) in patients with COVID-19 (COvid-19 Multi-omics Blood ATlas (COMBAT) Consortium, 2022). This evidence concerns the gene IL6 and COVID-19.