Fig. 7

Principal component analysis of influenza vaccinees according to each trial. Principal Component biplot showing clustering of vaccinees according to both TIVs or 09 MIV immunization. PCA was constructed using results of clonotype and lineage rarefaction and entropy analysis, IGHV1-69, IGHV3-7, and IGHV4-39 use and SHM rates per individual and trial. 08/09 TIV (green), 09 MIV (red), and 14/15 TIV (blue)