| Comparative Pathology of the Natural infections by Mycobacterium bovis and by Mycobacterium caprae in Wild Boar (Sus scrofa). | |
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MedLine Citation:
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PMID: 22469036 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The potential role of wild animals in the maintenance and spread of tuberculosis (TB) infection in domestic livestock is of particular importance in countries where eradication programs have substantially reduced the incidence of bovine tuberculosis but sporadic outbreaks still occur. Mycobacterium bovis is the agent mainly isolated in wildlife in Spain, but recently, infections by Mycobacterium caprae have increased substantially. In this study, we have analysed 43 mandibular lymph nodes samples containing TB-like lesions from 43 hunted wild boar from Madrid and Extremadura (central and south-western regions of Spain). After isolation, identification and typing of Mycobacterium tuberculosis complex isolates, we found that 23 mandibular lymph nodes involved M. caprae infections and 20 M. bovis. The lesions were compared for histopathology (different granuloma stage and number of multinucleated giant cells (MNGCs)), and acid-fast bacilli (AFBs) were quantified in the Ziehl-Neelsen-stained slides. Granulomas produced by M. caprae showed more stage IV granulomas, more MNGCs and higher AFBs counts than those induced by M. bovis. In conclusion, lesions caused by M. caprae would be more prone to the excretion of bacilli, and infected animals result as a high-risk source of infection for other animals. |
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Authors:
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W L García-Jiménez; J M Benítez-Medina; P Fernández-Llario; J A Abecia; A García-Sánchez; R Martínez; D Risco; A Ortiz-Peláez; F J Salguero; N H Smith; L Gómez; J Hermoso de Mendoza |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-4-2 |
Journal Detail:
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Title: Transboundary and emerging diseases Volume: - ISSN: 1865-1682 ISO Abbreviation: - Publication Date: 2012 Apr |
Date Detail:
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Created Date: 2012-4-3 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101319538 Medline TA: Transbound Emerg Dis Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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© 2012 Blackwell Verlag GmbH. |
Affiliation:
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Red de Grupos de Investigación Recursos Faunísticos, Facultad de Veterinaria, Universidad de Extremadura, Cáceres, Spain Pathology and Host Susceptibility Department, Animal Health and Veterinary Laboratories Agency, AHVLA-Weybridge, Addlestone, Surrey, UK Veterinario Oficial del Servicio Extremeño de Salud. Centro de Salud de Ceclavín, Cáceres, Spain Producción Animal. Centro de Investigación 'Finca La Orden Valdesequera', Badajoz, Spain Centre for Epidemiology and Risk Analysis, Animal Health and Veterinary Laboratories Agency, AHVLA-Weybridge, Addlestone, Surrey, UK Department of Bacteriology, Animal Health and Veterinary Laboratories Agency, AHVLA-Weybridge, Addlestone, Surrey, UK Unidad de Anatomía Patológica, Departamento de Medicina Animal, Facultad de Veterinaria, Universidad de Extremadura, Cáceres, Spain. |
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