Antiphospholipid syndrome (APS) is a systemic autoimmune condition, in which individuals make antibodies that target their own body cells. These antibodies, known as antiphospholipid antibodies (aPL), cause blood clots, miscarriages, and other complications such as low platelet counts.
https://www.hss.edu/conditions_top-ten-series-antiphospholipid-syndrome-coronavirus-covid-19.asp

