CXCL10 and COVID-19: Elevated innate immune cytokines detected in peripheral blood including interleukin (IL)-1, IL-6, IL-8, or C-X-C Motif Chemokine Ligand 10 (CXCL10) have been associated with severe or fatal COVID-19 (Blanco-Melo et al., 2020; Laing et al., 2020; Lucas et al., 2020; Vabret et al., 2020; Del Valle et al., 2020).