CCL20 and COVID-19: Despite the inter-donor differences, when combining the data from all the FBTEC donors, we observed a consistent trend of induction of proinflammatory cytokines (i.e., CCL20 and IL-6), chemokines (i.e., CCL5, CXCL8 and CXCL10) previously associated with SARS-CoV-2 infection (in vitro and in vivo), and the COVID-19-associated “cytokine storm” in humans [12,15,67,68,69].