CXCL1 and COVID-19: CXCL1 is also one of the components of the SARS-CoV-2-induced cytokine storm and is elevated in the blood of patients with severe COVID-19, mobilizing bone marrow neutrophils, resulting in increased blood neutrophilia and recruiting to the lungs, releasing neutrophils outside the neutrophil packet traps, which causes damage to the respiratory and circulatory systems [57,58].