In addition, 23 (19%) study participants had G6PD deficiency (IFNL4- TT/TT genotype = 19; IFNL4-dG allele = 4; Chi-square test; p-value: 0.7432) and 24 (20%) were found to be carriers of the sickle cell trait (Hb-A/S) (IFNL4- TT/TT genotype = 15; IFNL4-dG allele = 9; Chi-square test; p-value: 0.080) (Table 2). This evidence concerns the gene GSTM1 and G6PD deficiency.