In 2011, the Chilean bovine tuberculosis (bTB) program was launched by the Livestock and Agriculture Service (SAG) as a compulsory countrywide program based on testing and culling of bTB reactors at herd-owners expense. This review outlines the rationale and key components of the bTB program, and the dynamic changes that have occurred since 2011. The paper also examines the problems identified by stakeholders and the initiatives put in place to address the constraints to achieving progress.To date, the program has shown progress in controlling bTB. However, in order to achieve bTB eradication it will be essential to improve the commitment of stakeholders, and to develop a framework of strong and workable regulations that will help to manage bTB outbreaks, particularly where clusters of bTB infection are recorded.
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http://dx.doi.org/10.1186/s13620-023-00243-y | DOI Listing |
Emerg Microbes Infect
December 2024
Host-pathogen interactions (HPI) and Disease Intervention and Prevention (DIP) programs, Texas Biomedical Research Institute, San Antonio, TX 78227, USA.
The host range of HPAIV H5N1 was recently expanded to include ruminants, particularly dairy cattle in the United States (US). Shortly after, human H5N1 infection was reported in a dairy worker in Texas following exposure to infected cattle. Herein, we rescued the cattle-origin influenza A/bovine/Texas/24-029328-02/2024(H5N1, rHPbTX) and A/Texas/37/2024(H5N1, rHPhTX) viruses, identified in dairy cattle and human, respectively, and their low pathogenic forms, rLPbTX and rLPhTX, with monobasic HA cleavage sites.
View Article and Find Full Text PDFIr Vet J
December 2024
Centre for Veterinary Epidemiology and Risk Analysis, School of Veterinary Medicine, UCD, University College Dublin, Belfield, Dublin, D04 W6F6, Ireland.
There has been a sharp disimprovement in the bovine tuberculosis (bTB) situation in Ireland in recent years. This commentary argues for critical programme change in three overarching themes relevant to the Irish bTB eradication programme, if eradication is to be successful: (1) Limiting infection in cattle. Residual (hidden) infection is an important constraint to eradication, due to the use of imperfect diagnostic tests.
View Article and Find Full Text PDFBMC Vet Res
December 2024
Centro de Vigilancia Sanitaria Veterinaria (VISAVET), Universidad Complutense de Madrid, Madrid, Spain.
Background: The growing use of real-time PCR (qPCR) as a diagnostic method for bovine TB (bTB) requires rapid and effective DNA extraction methods, which are crucial for its success. Automated DNA extraction methods based on magnetic beads are a promising alternative to conventional silica column-based protocols (COL protocol) due to their high throughput capacity and reduced hands-on time. This study aimed to assess the performance of the MagMax CORE Nucleic Acid Purification kit and the KingFisher Flex instrument (KF protocol) as an alternative for scaling up the use of qPCR in bTB diagnosis.
View Article and Find Full Text PDFFEMS Microbiol Ecol
December 2024
Université de Poitiers, Laboratoire Ecologie et Biologie des Interactions, UMR Centre National de la Recherche Scientifique 7267, Equipe Microorganismes, Hôtes, Environnement Poitiers, France.
Free-living amoebae (FLA) are described as environmental reservoirs for some bacteria able to resist their phagocytosis. In the environment, the fate of Mycobacterium bovis (Mbo) and Mycobacterium avium subsp. paratuberculosis (Map), responsible for bovine tuberculosis and paratuberculosis respectively, remains poorly understood and is considered potentially problematic in the eradication and control of these diseases.
View Article and Find Full Text PDFCells
November 2024
National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China.
Tuberculosis (TB), primarily caused by () and (), remains the leading cause of death from a single infectious agent globally. Intracellular survival is crucial for their virulence; yet, the underlying mechanisms are not fully understood. This study aimed to demonstrate the significance of a previously unannotated bovine gene ENSBTAG00000011305 in intracellular survival.
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