Seroprevalencia de tuberculosis y paratuberculosis bovina en predios lecheros de la comuna de San Carlos, región de Ñuble, Chile

• Autores: Fischer Wiethuchter, Christof, Fehrmann Cartes, Karen, Morales Candia, Mario, Contreras Gutiérrez, Gabriela, Troncoso, Ignacio Eduardo
• Formato: artículo
• Fecha de Publicación: 2025
• Institución: Universidad Nacional Mayor de San Marcos
• Repositorio: Revistas - Universidad Nacional Mayor de San Marcos
• Lenguaje: español
• OAI Identifier: oai:revistasinvestigacion.unmsm.edu.pe:article/32161
• Enlace del recurso: https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/32161
• Nivel de acceso: acceso abierto
• Materia: seroprevalence; tuberculosis; paratuberculosis; mycobacterium; ELISA; bovine; seroprevalencia; micobacterias; bovinos

Tuberculosis (TB) and paratuberculosis (pTBC) are chronic, progressive, and debilitating infectious bacterial diseases caused by Mycobacterium bovis and Mycobacterium avium subsp. paratuberculosis, respectively. Their definitive hosts are cattle, although domestic and wild mammals are also considered accidental hosts. The objective of this study was to determine the seroprevalence for both pathogens using enzyme-linked immunosorbent assays (ELISA). The study was conducted in the commune of San Carlos, Punilla province, Ñuble region, Chile. Fifty blood samples were collected from cattle in three dairy farms. Of the 50 samples, 12 (24%) were seropositive for TB and 13 (26%) for pTBC, while the other 9 samples (18%) were positive for both diseases (co-infection). In the analysis by age group of animals positive for both diseases, 5 (19%) positive samples were found in cows <5 years old and 4 (17%) samples in cows >5 years old or older (p>0.05).