CD79A and infection: Infected patients had lower S1 IgG serum levels in comparison to those who remained free from infection during the study time (0.13 OD ratio (IQR 0.08–0.31) vs. 2.74 OD ratio (IQR 0.5–27.41), p < 0.0001), with 8/15 of infected participants belonging to the NR group and four and three patients belonging to the IgG-R and IgG/IgA-R groups, respectively.