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. 2015 Apr 28;22(5):578–585. doi: 10.1128/CVI.00080-15

FIG 5.

FIG 5

Induction of antigen-specific IgG antibody responses in mice immunized with OVA-PIC (ε-PL) NPs. Mice (n = 3) were subcutaneously immunized twice with PBS, OVA, OVA-PIC NPs (OVA-PIC), or OVA plus alum. Sera were collected on day 14 after the final immunization. The levels of OVA-specific IgG antibody were measured by ELISA. Data represent the means ± SD of the endpoint titers for groups of three mice. Statistical analysis was carried out among the results from 4 groups (*, P < 0.05).