Table 3.

Intra-assay Pearson correlations for H1N1 vaccine strains.

IgA (μg/ml)	14_D0	14_D21	15_D0	15_D21	16_D0
14_D21	0.80
15_D0	0.54	0.49
15_D21	0.44	0.50	0.70
16_D0	0.69	0.59	0.68	0.48
16_D21	0.75	0.68	0.61	0.53	0.89