GPX1 and COVID-19: Although the GPX1 rs1050450 polymorphism was not associated with COVID-19 susceptibility, it was significantly linked to increased D-dimer levels (p = 0.009) in Leu/Leu homozygous COVID-19 patients, and showed a borderline association with elevated fibrinogen (Jerotic et al., 2022)(Serbia, 458, 229, 229)