It was proven that the use of BCG-DNA as adjuvant enhances the immune response in three viral swine diseases and also in Taenia solium cysticercosis, where the BCG-DNA or CpG-ODN increases the levels of IgG2, IFN-γ, the percentage of CD8+ T cells and specific proliferation of peripheral blood mononuclear cells [55, 56]. This evidence concerns the gene CD8A and swine disease.