RT info:eu-repo/semantics/article T1 Peripheral IFN-ɣ Production after Blood Stimulation with Different Mycobacterial Antigens in Goats Vaccinated against Paratuberculosis A1 Fernández, Miguel A1 Royo, Marcos A1 Arteche Villasol, Noive A1 Ferreras Estrada, María Del Carmen A1 Benavides, Julio A1 Pérez Pérez, Valentín A2 Sanidad Animal K1 Sanidad animal K1 Paratuberculosis K1 Vaccination K1 Ruminants K1 Mycobacterium avium subspecies paratuberculosis K1 Interferon-gamma K1 Immune response K1 Tuberculosis K1 Antigens K1 3109 Ciencias Veterinarias AB [EN] Vaccination can be an efficient method for the control of paratuberculosis in ruminants. However, the official tuberculosis control tests cross-interfere with the animals vaccinated against paratuberculosis. In order to test and compare new antigens that could solve this problem, the production of interferon-gamma (IFN-γ) in peripheral blood at different post-vaccination days in experimental kids and adult goats, in field conditions, using the avian and bovine purified protein derivative (PPD), the johnin, two peptide cocktails of Mycobacterium bovis (PC-EC and PC-HP) and the antigens VK 055 and VK 067 of Mycobacterium avium subspecies paratuberculosis (Map) has been analyzed in vitro. The non-specific production of IFN-γ was observed after blood stimulation with the PC-EC and PC-HP cocktail in any sample from vaccinated animals, whereas it was detected when bovine PPD was used. These results support the possible use of these new Mycobacterium bovis antigens in the in the differentiation of animals vaccinated against paratuberculosis or infected with tuberculosis by improving the specificity of bovine PPD. In contrast, the two Map antigens tested in this study did not improve the sensitivity of johnin or avian PPD in the detection of vaccinated or Map-infected goats PB MDPI LK https://hdl.handle.net/10612/18809 UL https://hdl.handle.net/10612/18809 NO Fernández, M., Royo, M., Arteche-Villasol, N., Ferreras, M. C., Benavides, J., & Pérez, V. (2022). Peripheral IFN-ɣ Production after Blood Stimulation with Different Mycobacterial Antigens in Goats Vaccinated against Paratuberculosis. Vaccines, 10(10). https://doi.org/10.3390/VACCINES10101709 DS BULERIA. Repositorio Institucional de la Universidad de León RD 19-may-2024