While CXCL9, CXCL10 and CXCL11 expression levels were increased both in moderate and severe disease compared to healthy levels, IL1β, IL6, TNF as well as CCL2, CCL3, CCL4 and CCL7 were expressed at higher levels in lung macrophages from patients with severe COVID-19. The gene discussed is CCL4; the disease is COVID-19.