Infection mainly induces the production of specific IgA antibodies [17,30,31,32,33,34,35,36,37,38,39,40,41,42,43,46,47,83,84,85,86], while vaccination mostly elicits the IgG response [22,25,27,29,32,38,42,44,46,47]. The gene discussed is CD79A; the disease is infection.