Although the antioxidant role of GSTA1 is well established and certain structural homology between GSTA1 and GSTP1 explains why GSTA1 can also suppress JNK1 signaling in a similar manner as GSTP1 (Romero et al., 2006; Pljesa-Ercegovac et al., 2018), we did not find any association between GSTA1 genotypes and COVID-19 development. This evidence concerns the gene GSTP1 and COVID-19.