The first case report of a COVID-19 patient with aPL and arterial ischemia was described by Chinese authors [95], although, subsequently, a larger, multicentric cohort demonstrated a low rate of aPL positivity, as defined by classification criteria, suggesting that aPL found in COVID-19 patients is different from aPL found in antiphospholipid syndrome [96]. Here, FASLG is linked to COVID-19.