Pathogenesis of domestic pigs submitted to mycobacterial sensitizations previous to experimental infection with Mycobacterium bovis
2022
Cuerda, Maria Ximena | Colombatti Olivieri, Maria Alejandra | Gravisaco, María José | Marfil, Maria Jimena | Barandiaran, Soledad | Sevilla, Iker A. | Garrido, Joseba M. | Moyano, Roberto Damian | Zumarraga, Martin Jose | Romano, Maria Isabel | Juste, Ramón A. | Santangelo, María De La Paz
Aim of study: To demonstrate the virulence of a Mycobacterium bovis local pig isolate in order to contribute to a better understanding of the pathological and immunological consequences of M. bovis infection in previous sensitized animals. Area of study: Buenos Aires, Argentina Material and methods: One group of ten pigs received two oral doses of killed M. bovis suspension and a comparative intradermal tuberculin test (CIT) (multiple sensitized) and then was infected with the M. bovis strain. Another group only received the CIT (single sensitized) and the infective dose. Humoral immune response was followed monthly, and gross pathology, histopathological and bacteriological analysis were performed at necropsy 100 days after infection. Main results: M. bovis oral infection induced lesions and allowed bacterial growth in most of the animals. Previous sensitization with killed M. bovis suspension slightly raised the intensity of the response, as the multiple sensitized group showed higher lesion scores and humoral response. Research highlights: Although the differences in lesion scores were not statistically significant, oral route infection after sensitization can modify the course of infections towards a fast development of lesions with a higher fibrotic component suggestive of increased resistance to infection in the right conditions.
Show more [+] Less [-]Instituto de Biotecnología
Show more [+] Less [-]Fil: Cuerda, Maria Ximena. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina
Show more [+] Less [-]Fil: Cuerda, Maria Ximena. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Show more [+] Less [-]Fil: Colombatti Olivieri, Maria Alejandra. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina
Show more [+] Less [-]Fil: Colombatti Olivieri, Maria Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Show more [+] Less [-]Fil: Gravisaco, María José. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina
Show more [+] Less [-]Fil: Gravisaco, María José. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Show more [+] Less [-]Fil: Marfil, Maria Jimena. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias; Argentina
Show more [+] Less [-]Fil: Barandiaran, Soledad. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias; Argentina
Show more [+] Less [-]Fil: Sevilla, Iker A. Instituto Vasco de Investigación y Desarrollo Agrario (NEIKER). Departamento de Salud Animal; España
Show more [+] Less [-]Fil: Garrido, Joseba M. Instituto Vasco de Investigación y Desarrollo Agrario (NEIKER). Departamento de Salud Animal; España
Show more [+] Less [-]Fil: Moyano, Roberto Damian. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina
Show more [+] Less [-]Fil: Moyano, Roberto Damian. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Show more [+] Less [-]Fil: Zumarraga, Martin Jose. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina
Show more [+] Less [-]Fil: Zumarraga, Martin Jose. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Show more [+] Less [-]Fil: Romano, Maria Isabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina
Show more [+] Less [-]Fil: Romano, Maria Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Show more [+] Less [-]Fil: Juste, Ramón A. Instituto Vasco de Investigación y Desarrollo Agrario (NEIKER). Departamento de Salud Animal; España
Show more [+] Less [-]Fil: Santangelo, María De La Paz. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina
Show more [+] Less [-]Fil: Santangelo, María De La Paz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
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