CCL20 and COVID-19: It is noteworthy that we observed a significant increase in CCL20 (which displays chemotactic activity for lymphocytes), CXCL8, CXCL2, CXCL3, CXCL5 (as powerful chemoattractants for neutrophils), and CXCL10 (a regulator of leukocyte chemotaxis) in both cells lines studied, suggesting that the presence of these cells is likely to mediate the induction of numerous chemokines and ILs that contribute to the cytokine storm observed in patients with severe COVID-19, requiring intensive care in hospitals [25].