• Corpus ID: 83365870

Bovine Tuberculosis in Cattle and Badgers

  title={Bovine Tuberculosis in Cattle and Badgers},
  author={J R Krebs and R Anderson and Tom Clutton-Brock and Ivan W. Morrison and Douglas Brownlee Young and Ceara Donnelley},
Bovine Tuberculosis (bTB) was a major problem in cattle herds during the last 100 years but was virtually eradicated by tuberculin testing and slaughter of infected cattle. It persisted in southwest England, some parts of Wales and the West Midlands, and is now increasing in other parts of Britain. Since the mid-1970s tens of thousands of badgers have been culled in response to bTB outbreaks, because of circumstantial evidence that they spread the disease but bTB has continued to increase in… 


It is shown that badgers collected on such localized culls had elevated prevalence of Mycobacterium bovis, the causative agent of bovine TB, suggesting that infections in cattle and badgers were indeed associated.

Bovine tuberculosis (Mycobacterium bovis) in British farmland wildlife: the importance to agriculture

A systematic survey of wild mammals present on dairy farms suggests that these animals are relatively unimportant as reservoirs of bTB, having insufficient within-species (or within-group) transmission to sustain the infection, though occasional spill-overs from cattle or badgers may occur.

Bovine TB and the development of new vaccines.

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Results from a large-scale field trial indicate that localized badger culling not only fails to control but also seems to increase TB incidence in cattle.

Bovine tuberculosis in Swedish farmed deer

The model predicted that BTB would be either detected or eliminated in most herds (90%) 15 years after introduction of one infected deer, and in certain large extensive deer farms, meat inspection was suggested as an alternative to tuberculin testing.

Cattle tuberculosis schemes: control or eradication?

  • M. Hancox
  • Medicine
    Letters in applied microbiology
  • 2000
The present review attempts to shed light on four issues: how TB develops in cattle and spreads within the population; why TB schemes succeed or fail; cattle husbandry risk factors; and hence, having suggested the historical causes of the present crisis, how the problem may be rectified as a matter of urgency.

The role of badgers in the epidemiology of Mycobacterium bovis infection (tuberculosis) in cattle in the United Kingdom and the Republic of Ireland: current perspectives on control strategies

It is unlikely that the eradication of TB from cattle will be achieved without the reservoir of M. bovis infection in badgers being controlled, and the chances of success will improve with greater knowledge of the disease in both species and an understanding of the epidemiological drivers of the transmission of infection between badgers and cattle.

Localized reactive badger culling increases risk of bovine tuberculosis in nearby cattle herds

The presence of any reactive badger culling activity and increased numbers of badgers culled in the vicinity of a herd were associated with significantly increased bTB risk, even after adjusting for other important local risk factors.

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Positive and negative effects of widespread badger culling on tuberculosis in cattle

It is shown that, as carried out in this experiment, culling reduces cattle TB incidence in the areas that are culled, but increases incidence in adjoining areas, which is biologically consistent with previous studies but will present challenges for policy development.



Laboratory study of Mycobacterium bovis infection in badgers and calves

The experiments further demonstrate the potential of a badger population to become endemically infected with M bovis and to act as a source of infection for cattle.

Badgers (Meles meles), cattle and bovine tuberculosis (Mycobacterium bovis) : a hypothesis to explain the influence of habitat on the risk of disease transmission in southwest England

The hypothesis is presented that these crossing-point urinations are a major source of bovine tuberculosis infection in cattle, and that areas with increased numbers of linear features have greater levels of contamination of pasture with badger urine and hence increased opportunities for disease transmission.

Mycobacterium bovis in England and Wales: past, present and future.

Of the 228 isolates of M. bovis examined in this period, 122 (53%) were from patients aged over 60 years and are largely the result of reactivation of infection acquired prior to the institution of control measures, however, eight isolates (3.5%) wereFrom patients aged less than 30 years, and the potential sources for these presumed primary infections include the few remaining cattle infected with M. Bovis.

The epidemiology of Mycobacterium bovis infections in animals and man: a review.

  • L. O'reillyC. Daborn
  • Biology, Medicine
    Tubercle and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease
  • 1995

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Estimates of seasonal variations in bodyweight for uninfected male and female cub, yearling and adult badgers are presented and compared to the weights at post-mortem examination of the tuberculous badgers, in whom poor condition and weight loss were the principal presenting signs.

Pulmonary lesions and Mycobacterium bovis excretion from the respiratory tract of tuberculin reacting cattle

All tuberculous cattle with lesions in respiratory lymph nodes, rather than being regarded as non-excretors, should be considered as possible excretors and thus important sources of infection for other cattle both within and between herds.

Tuberculosis in Cattle

  • B. Bang
  • Medicine
    The Journal of Comparative Medicine and Surgery
  • 1884

An ELISA for the detection of anergic tuberculous cattle.

An enzyme-linked immunosorbent assay for bovine antibody to antigens in unheated Mycobacterium bovis culture filtrate was standardised against a reference serum from an experimentally infected cow to detect some anergic cattle at the cost of increasing the number of false positive reactors.