IGHG3 and infection: However, when the control arm was evaluated without censoring participants for having infections between days 0 and 90 (n = 29), AUCd0–90 correlated positively with IgG1, IgG2, IgG3, and IgG4 at day 90 and IgG2 and IgG3 at day 240; additionally AUCd90–240 correlated with IgG3 at day 240 (Table 5).