Plasma from children with uncomplicated malaria (UM) (n = 124) and CM (n = 136) was analyzed by ELISA for a panel of 8 autoantibodies including anti–platelet factor 4/polyanion (anti-PF4/P), anti-phospholipid, anti-phosphatidylserine, anti-myeloperoxidase, anti–proteinase 3, anti-dsDNA, anti–β-2-glycoprotein I, and anti-cardiolipin. Here, PF4 is linked to malaria.