While, in controls, there were no significant differences both in plasma IgA1 and Gd-IgA1 levels whether between uninfected controls and controls with type I infection (1.9 ± 0.7 vs. 2.1 ± 0.7 g/L, p = 0.535; 4.0 ± 2.7 vs. 3.4 ± 1.9 μg/mL, p = 0.608) or between controls and controls with type II infection (1.9 ± 0.7 vs. 1.8 ± 0.8 g/L, p = 0.869; 4.0 ± 2.7 vs. 4.6 ± 2.4 μg/mL, p = 0.682) or between controls with I infection and controls with II infection (2.1 ± 0.7 vs. 1.8 ± 0.8 g/L, p = 0.552; 3.4 ± 1.9 vs. 4.6 ± 2.4 μg/mL, p = 0.363) (Figure 2(C)). This evidence concerns the gene IGHA1 and infection.