Cytokine profiling of the sera of patients with COVID-19 and the transcriptional analysis of their BAL fluid revealed increased IL-6, G-CSF, CXCL10, CCL2, CCL3, and TNF-α levels, correlating with disease severity and progression (Chen et al., 2020; Yang et al., 2020). The gene discussed is CXCL10; the disease is COVID-19.