Considering that CCRL2 is predominantly expressed by leukocytes, and in these cells one of the roles of CCRL2 is to regulate the activities of the co-expressed CKRs [14,16], we identified additional 302 CCRL2 eQTLs deriving from studies dedicated to COVID-19 relevant tissues (peripheral blood and lungs) (Fig. 1B; Suppl. Here, CCRL2 is linked to COVID-19.