Figure 5.

PRV-gD-specific IgG titre and neutralizing antibody titre were evaluated. (A) The indirect ELISA was used to detect gD-specific IgG titer from serum samples at 0, 14, 28, 42, 56, and 63 dpi. (B) Neutralizing antibody titer was examined in the serum of the immunized pigs. The neutralizing ability of antisera generated against PRV-GX strain was calculated and presented as the log2 of the reciprocal of the highest serum dilution when PK-15 cell infection was inhibited. n = 4. ns represents not significant.