A recent study tested eight types of APLa, namely anticardiolipin Immunoglobulin (Ig)A/IgG/IgM, anti-beta-2 glycoprotein 1 IgA/IgG/IgM, and anti-phosphotidylserine/prothrombin IgM/IgG in the sera of 172 patients with COVID-19 [8]. Here, CD40LG is linked to COVID-19.