Bronchoalveolar lavage (BAL) from COVID-19 patients show upregulated: a) chemokine genes such as CCL2 and CXCL8, which function as chemoattractants for inflammatory monocytes and neutrophils, respectively, and b) classical pro-inflammatory cytokine genes such as IL1RN and IL1B [17]. Here, CCL2 is linked to COVID-19.