Another chemokine, Interferon-inducible protein-10 (IP-10; also known as CXCL10) detected in SARS-CoV infections (Jiang et al., 2005) might be critical since its expression levels was shown to be associated with disease severity in SARS-CoV-2 patients (Yang et al., 2020). This evidence concerns the gene CXCL10 and severe acute respiratory syndrome.