Table 4.

Intra-assay Pearson correlations for H3N2 vaccine strains.

IgA (μg/ml)	14_D0	14_D21	15_D0	15_D21	16_D0
14_D21	0.77
15_D0	0.81	0.72
15_D21	0.60	0.57	0.66
16_D0	0.73	0.67	0.76	0.70
16_D21	0.71	0.66	0.69	0.79	0.81