Mycobacteriosis outbreak caused by Mycobacterium aviumsubsp.avium detected through meat inspection in five porcine fattening farms
Between December 2010 and January 2011 a number (n=20) of cases were submitted to the Slaughterhouse Support Service (Servei de Suport a Escorxadors, SESC-CReSA), consisting of grossly nodular granulomatous and caseous lesions in pig carcasses from five different farms. Lesions involved lymph nodes,...
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| Format: | Article |
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BMJ Publishing Group
2013
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| Online Access: | https://eprints.nottingham.ac.uk/37936/ |
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| author | Pérez de Val, B. Grau-Roma, Llorenc Segalés, J. Domingo, M. Vidal, E. |
| author_facet | Pérez de Val, B. Grau-Roma, Llorenc Segalés, J. Domingo, M. Vidal, E. |
| author_sort | Pérez de Val, B. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Between December 2010 and January 2011 a number (n=20) of cases were submitted to the Slaughterhouse Support Service (Servei de Suport a Escorxadors, SESC-CReSA), consisting of grossly nodular granulomatous and caseous lesions in pig carcasses from five different farms. Lesions involved lymph nodes, lungs, liver and spleen.
Histopathological examination showed multifocal to coalescent, granulomatous and necrotizing splenitis, hepatitis, pneumonia and lymphadenitis. The presence of acid-fast bacilli in some cases revealed that it was a mycobacteriosis.
Bacteriological analysis was performed to confirm the diagnosis and identify the aetiological agent (to rule out it was from the M. tuberculosis complex mycobacteria, which includes species causing human and animal tuberculosis). The identification of culture isolates by PCR confirmed the growth of M. avium complex. Further sequencing analysis determined it was M. avium. subsp. avium.
The most likely source of the outbreak was considered to be the feed which shared the five farms, which might have been contaminated with M. avium subsp. avium (common pathogen in poultry and other birds). The fact that most of the animals presented a clear involvement of abdominal viscera is consistent with an oral route of infection. |
| first_indexed | 2025-11-14T19:34:06Z |
| format | Article |
| id | nottingham-37936 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:34:06Z |
| publishDate | 2013 |
| publisher | BMJ Publishing Group |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-379362020-05-04T16:40:40Z https://eprints.nottingham.ac.uk/37936/ Mycobacteriosis outbreak caused by Mycobacterium aviumsubsp.avium detected through meat inspection in five porcine fattening farms Pérez de Val, B. Grau-Roma, Llorenc Segalés, J. Domingo, M. Vidal, E. Between December 2010 and January 2011 a number (n=20) of cases were submitted to the Slaughterhouse Support Service (Servei de Suport a Escorxadors, SESC-CReSA), consisting of grossly nodular granulomatous and caseous lesions in pig carcasses from five different farms. Lesions involved lymph nodes, lungs, liver and spleen. Histopathological examination showed multifocal to coalescent, granulomatous and necrotizing splenitis, hepatitis, pneumonia and lymphadenitis. The presence of acid-fast bacilli in some cases revealed that it was a mycobacteriosis. Bacteriological analysis was performed to confirm the diagnosis and identify the aetiological agent (to rule out it was from the M. tuberculosis complex mycobacteria, which includes species causing human and animal tuberculosis). The identification of culture isolates by PCR confirmed the growth of M. avium complex. Further sequencing analysis determined it was M. avium. subsp. avium. The most likely source of the outbreak was considered to be the feed which shared the five farms, which might have been contaminated with M. avium subsp. avium (common pathogen in poultry and other birds). The fact that most of the animals presented a clear involvement of abdominal viscera is consistent with an oral route of infection. BMJ Publishing Group 2013-12-13 Article PeerReviewed Pérez de Val, B., Grau-Roma, Llorenc, Segalés, J., Domingo, M. and Vidal, E. (2013) Mycobacteriosis outbreak caused by Mycobacterium aviumsubsp.avium detected through meat inspection in five porcine fattening farms. Veterinary Record, 174 (4). 96/1-96/3. ISSN 2042-7670 Mycobacteriosis Tuberculosis Pigs Mycobacterium avium Slaughterhouse http://dx.doi.org/10.1136/vr.101886 doi:10.1136/vr.101886 doi:10.1136/vr.101886 |
| spellingShingle | Mycobacteriosis Tuberculosis Pigs Mycobacterium avium Slaughterhouse Pérez de Val, B. Grau-Roma, Llorenc Segalés, J. Domingo, M. Vidal, E. Mycobacteriosis outbreak caused by Mycobacterium aviumsubsp.avium detected through meat inspection in five porcine fattening farms |
| title | Mycobacteriosis outbreak caused by Mycobacterium aviumsubsp.avium detected through meat inspection in five porcine fattening farms |
| title_full | Mycobacteriosis outbreak caused by Mycobacterium aviumsubsp.avium detected through meat inspection in five porcine fattening farms |
| title_fullStr | Mycobacteriosis outbreak caused by Mycobacterium aviumsubsp.avium detected through meat inspection in five porcine fattening farms |
| title_full_unstemmed | Mycobacteriosis outbreak caused by Mycobacterium aviumsubsp.avium detected through meat inspection in five porcine fattening farms |
| title_short | Mycobacteriosis outbreak caused by Mycobacterium aviumsubsp.avium detected through meat inspection in five porcine fattening farms |
| title_sort | mycobacteriosis outbreak caused by mycobacterium aviumsubsp.avium detected through meat inspection in five porcine fattening farms |
| topic | Mycobacteriosis Tuberculosis Pigs Mycobacterium avium Slaughterhouse |
| url | https://eprints.nottingham.ac.uk/37936/ https://eprints.nottingham.ac.uk/37936/ https://eprints.nottingham.ac.uk/37936/ |