Six chemokines (CXCL9, CXCL10, CCL4, CCL5, CCL27, and CXCL12) and eight interleukins (IL-1Ra, IL-2Ra, IL-3, IL-5, IL-9, IL-12p40, IL-15, and IL-16) were increased in both PLWH/COVID-19 and COVID-19-only (Figure 4A,C). Here, CCL4 is linked to COVID-19.