A trend toward higher ELF concentrations of CXCL1 (p = 0.287), CXCL10 (p = 0.287), granzyme B (p = 0.110), TRAIL (p = 0.094), and EGF (p = 0.094) is observed in COVID-19 patients. Here, CXCL10 is linked to COVID-19.