Mycobacterium bovis infection in domestic pigs in Great Britain

Bailey, Suzanne S.; Crawshaw, T. R.; Smith, Noel H.; Palgrave, Christopher J

doi:10.1016/j.tvjl.2013.08.035

Cited by 49 publications

(38 citation statements)

References 28 publications

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“…Recently, TB has become of concern in other livestock sectors such as the pig industry (Bailey et al. ). TB acquired by consuming MTC‐infected prey affects lion Panthera leo conservation in South Africa (Renwick et al.…”

Section: Introductionmentioning

confidence: 99%

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Open questions and recent advances in the control of a multi‐host infectious disease: animal tuberculosis

2015

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Animal tuberculosis (TB) control is globally important for public health, economics and conservation. Wildlife species are often part of the Mycobacterium tuberculosis complex (MTC) maintenance community, complicating TB control attempts. We describe the current knowledge on global TB distribution and the significance of wildlife hosts; identify insufficiently known aspects of host pathology, ecology and epidemiology; present selected time series in wildlife TB; and summarize ongoing research on TB control, providing additional insight on vaccination. Six specific research needs are identified and discussed, namely: 1) complete the world map of wildlife MTC reservoirs and describe the structure of each local MTC host community; 2) identify the origin and behaviour of generalized diseased individuals within populations, and study the role of factors such as co‐infections, re‐infections and individual condition on TB pathogenesis; 3) quantify indirect MTC transmission within and between species; 4) define and harmonize wildlife disease monitoring protocols, and apply them in a way that allows proper population and prevalence trend comparisons in both space and time; 5) carry out controlled and replicated wildlife TB control experiments using single intervention tools; 6) analyse cost‐efficiency and consider knowledge transfer aspects in promising intervention strategies. We believe that addressing these six points would push ahead our capacities for TB control. A remaining question is whether or not interventions on wildlife TB are at all justified. The answer depends on the local circumstances of each TB hotspot, and is likely to evolve during our collective progress towards TB control in livestock and in wildlife.

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Section: Introductionmentioning

confidence: 99%

“…The answer depends on the local circumstances of each TB hotspot, and is likely to evolve during our collective progress towards TB control in livestock and in wildlife. Recently, TB has become of concern in other livestock sectors such as the pig industry (Bailey et al 2013). TB acquired by bs_bs_banner…”

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confidence: 99%

Open questions and recent advances in the control of a multi‐host infectious disease: animal tuberculosis

2015

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“…Such transmission most likely occur when wildlife and domestic animals share pasture or territory (O'Reilly and Daborn, 1995). Recent study reported that domesticated pigs may be associated with M. bovis transmission to cattle (Bailey et al, 2013). This study suggests that pigs raised outdoors may be vulnerable to M. bovis infection by badgers and that M. bovis-infected pigs become sources of infection to cattle.…”

Section: Discussionmentioning

confidence: 79%

Extent of Mycobacterium bovis transmission among animals of dairy and beef cattle and deer farms in South Korea determined by variable-number tandem repeats typing

Jeon

et al. 2015

Veterinary Microbiology

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“…The situation is similar to Denmark (Alban et al, 2008) and in Europe more generally with a prevalence of M. bovis infection in pigs estimated at 0.0004% (EFSA Panels on Biological Hazards (BIOHAZ), 2011). The very low detection of Mycobacterium in lesions suspected of infection by this microorganism has been documented in an extensive study in Great Britain (Bailey, Crawshaw, Smith, & Palgrave, 2013). A total of 874 suspected lesions of tuberculosis in MLNs, lung, thoracic or mesenteric lymph nodes were systematically submitted to Mycobacterium culture over the period 2007-2011: M. bovis was detected in 12.8% of them, M. avium in 11.7%, whereas the culture was negative in 48.2% and inconclusive in 27.3%.…”

Section: Discussionmentioning

confidence: 99%

Hog Mandibular Lymph Node Abnormalities and Bacteriological Contamination at Slaughter in Canada

Ravel¹,

Sidibé²,

Moreau³

et al. 2015

JFR

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In the context of meat inspection modernization, the current mandatory incision and visual inspection of all hog mandibular lymph nodes (MLNs) to detect signs of infection by Mycobacterium bovis, a zoonotic infection is examined. Canadian data of MLN pathology and microbial contamination are scarce and the performance of the current regulatory inspection of MLNs in actually detecting lesions and contamination by Mycobacterium bovis has not been documented. A survey of MLN condition in market hogs according to various inspection schemes was undertaken to fill the data gap. One MLN of a representative sample of 149 483 hogs were submitted to standard pathological and bacteriological analyses. Actual abnormal MLNs actually were rare (below 8%). They are often under detected by the current inspection because of limited sensitivity (18%). Such abnormalities, even undetected, have very limited, if any, impact on human health since the pathological and microbiological analyses failed to provide evidence of Mycobacterium bovis infection. On the other hand, MLNs can be contaminated with several bacteria potentially pathogenic to humans, raising the risk of cross-contamination during the inspection with incision. Finally, the current incision and visual inspection of all hog MLNs and the proposed visual-only inspection perform similarly in identifying abnormal MLNs.

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Mycobacterium bovis infection in domestic pigs in Great Britain

Cited by 49 publications

References 28 publications

Open questions and recent advances in the control of a multi‐host infectious disease: animal tuberculosis

Open questions and recent advances in the control of a multi‐host infectious disease: animal tuberculosis

Extent of Mycobacterium bovis transmission among animals of dairy and beef cattle and deer farms in South Korea determined by variable-number tandem repeats typing

Hog Mandibular Lymph Node Abnormalities and Bacteriological Contamination at Slaughter in Canada

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