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a/b: ELISA results.3a) E2 specific ELISA (IDEXX) of Q7, S10, O11, or C-strain “Riems” positive control immunized pigs and a mock control of unvaccinated pigs. 3b) E2 specific ELISA (Idexx) after saturation of antigen coated plate by incubation with serum of pigs vaccinated with chimeric pestivirus CP7_E1E2alf_TLA containing E2 protein with modified TAV-epitop. dpv: days post vaccination, dpi: days post challenge infection.
