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Figure 4 | Veterinary Research

Figure 4

From: Memory T cell proliferative responses and IFN-γ productivity sustain long-lasting efficacy of a Cap-based PCV2 vaccine upon PCV2 natural infection and associated disease

Figure 4

Cellular immune reactivity of activated T lymphocyte subsets upon in vitro stimulation after PCV2 natural exposure. Levels of CD4+ and CD8α+ cell subsets in PCV2-vaccinated (PCV2-vac) and control (C) pigs during the post-exposure (PE) period upon 48-h PCV2b in vitro stimulation. PCV2-vac pigs were vaccinated at 3 weeks of age using a PCV2a Cap protein-based subunit vaccine. Values are normalized to the corresponding medium control samples. (*): statistically significant difference between groups (p < 0.05).

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