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Figure 5 | BMC Veterinary Research

Figure 5

From: Construction and immunogenicity of a DNA vaccine coexpressing GP3 and GP5 of genotype-I porcine reproductive and respiratory syndrome virus

Figure 5

Lymphocyte proliferative responses in immunized mice after in vitro stimulation with purified PRRSV LV antigen. Each group of mice (n = 6) was immunized with 100 μg of DNA vaccine at 0 and 3 weeks. Five weeks after the last inoculation, the mice were sacrificed and their splenocytes stimulated with PRRSV virus. After 72 h of stimulation, WST-1 was added and OD values were determined after a further 4 h of incubation. The samples were assayed in triplicate. Data are presented as the mean ± standard error. * Indicates a significant difference (P < 0.05) between the groups. Data are shown as the mean ± S.D.

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