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


Human and livestock diseases can be difficult to control where infection persists in wildlife populations. For three decades, European badgers (Meles meles) have been culled by the British government in a series of attempts to limit the spread of Mycobacterium bovis, the causative agent of bovine tuberculosis (TB), to cattle1. Despite these efforts, the incidence of TB in cattle has risen consistently, re-emerging as a primary concern for Britain's cattle industry. Recently, badger culling has attracted controversy because experimental studies have reached contrasting conclusions (albeit using different protocols), with culled areas showing either markedly reduced2,3 or increased4,5 incidence of TB in cattle. This has confused attempts to develop a science-based management policy. Here we use data from a large-scale, randomized field experiment to help resolve these apparent differences. We show that, as carried out in this experiment, culling reduces cattle TB incidence in the areas that are culled, but increases incidence in adjoining areas. These findings are biologically consistent with previous studies2,3,4,5 but will present challenges for policy development.

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Figure 1: Effects of badger culling on cattle TB incidence.
Figure 2: Simplified map of proactive and survey-only areas of triplet A.


  1. 1

    Krebs, J. R. et al. Bovine Tuberculosis in Cattle and Badgers Report PB3423 (HMSO, London, 1997)

    Google Scholar 

  2. 2

    Griffin, J. M. et al. The impact of badger removal on the control of tuberculosis in cattle herds in Ireland. Prev. Vet. Med. 67, 237–266 (2005)

    ADS  CAS  Article  Google Scholar 

  3. 3

    Eves, J. A. Impact of badger removal on bovine tuberculosis in east County Offaly. Ir. Vet. J. 52, 199–203 (1999)

    Google Scholar 

  4. 4

    Donnelly, C. A. et al. Impact of localized badger culling on tuberculosis incidence in British cattle. Nature 426, 834–837 (2003)

    ADS  CAS  Article  Google Scholar 

  5. 5

    Le Fevre, A. M. et al. The Impact of Localised Reactive Badger Culling Versus No Culling on TB Incidence in British Cattle: a Randomised Trial. http://www.defra.gov.uk/animalh/tb/isg/pdf/lefevre1005.pdf (2005).

  6. 6

    Woodroffe, R. et al. Spatial association of Mycobacterium bovis infection in cattle and badgers. J. Appl. Ecol. 42, 852–862 (2005)

    Article  Google Scholar 

  7. 7

    Dunnet, G. M., Jones, D. M. & McInerney, J. P. Badgers and Bovine Tuberculosis: Review of Policy (HMSO, London, 1986)

    Google Scholar 

  8. 8

    Zuckerman, S. Badgers, Cattle and Tuberculosis (HMSO, London, 1980)

    Google Scholar 

  9. 9

    Godfray, H. C. J. et al. Independent Scientific Review of the Randomised Badger Culling Trial and Associated Epidemiological Research http://www.defra.gov.uk/science/documents/publications/2004/GodfreyReport_BovineTBEpidemiology.pdf (HMSO, London, 2004)

    Google Scholar 

  10. 10

    Bourne, J. et al. An Epidemiological Investigation into Bovine Tuberculosis—Towards a Science-Based Control Strategy. Fourth Report of the Independent Scientific Group on Cattle TB http://www.defra.gov.uk/animalh/tb/isg/4th-isgreport.pdf (Department for Environment, Food & Rural Affairs, London, 2005)

    Google Scholar 

  11. 11

    Clifton-Hadley, R. S., Wilesmith, J. W., Richards, M. S., Upton, P. & Johnston, S. The occurrence of Mycobacterium bovis infection in and around an area subject to extensive badger (Meles meles) control. Epidemiol. Infect. 114, 179–193 (1995)

    CAS  Article  Google Scholar 

  12. 12

    Roper, T. J. & Lüps, P. Disruption of territorial behaviour in badgers Meles meles. Z. Saugetierkd. 58, 252–255 (1993)

    Google Scholar 

  13. 13

    Cheeseman, C. L., Mallinson, P. J., Ryan, J. & Wilesmith, J. W. in The Badger (ed. Hayden, T. J.) 78–93 (Royal Irish Academy, Dublin, 1993)

    Google Scholar 

  14. 14

    O'Corry-Crowe, G., Hammond, R., Eves, J. & Hayden, T. J. The effect of reduction in badger density on the spatial organisation and activity of badgers Meles meles L. in relation to farms in central Ireland. Biol. Env. Proc. R. Ir. Acad. 96B, 147–158 (1996)

    Google Scholar 

  15. 15

    Tuyttens, F. A. M. et al. Spatial perturbation caused by a badger (Meles meles) culling operation: implications for the function of territoriality and the control of bovine tuberculosis (Mycobacterium bovis). J. Anim. Ecol. 69, 815–828 (2000)

    CAS  Article  Google Scholar 

  16. 16

    Woolhouse, M. E. J. Dangers of moving cows. Nature 435, 431–432 (2005)

    ADS  CAS  Article  Google Scholar 

  17. 17

    Bourne, J. et al. Towards a Sustainable Policy to Control TB in Cattle—A Scientific Initiative. First Report of the Independent Scientific Group on Cattle TB (Ministry of Agriculture, Fisheries & Food, London, 1998)

    Google Scholar 

  18. 18

    White, P. C. L. & Whiting, S. J. Public attitudes towards badger culling to control bovine tuberculosis in cattle. Vet. Rec. 147, 179–184 (2000)

    CAS  Article  Google Scholar 

  19. 19

    Woodroffe, R. et al. Effects of culling on badger (Meles meles) spatial organization: implications for the control of bovine tuberculosis. J. Appl. Ecol. doi:10.1111/j.1365-2664.2005.01144.x (in the press)

  20. 20

    Woodroffe, R., Frost, S. D. W. & Clifton-Hadley, R. S. Attempts to control tuberculosis in cattle by culling infected badgers: constraints imposed by live test sensitivity. J. Appl. Ecol. 36, 494–501 (1999)

    Article  Google Scholar 

  21. 21

    Cresswell Associates. TB in Cattle: Report of the Independent Audit of Surveying and Badger Social Group Territory Delineation Procedures Used in The Randomised Badger Culling Trial and MAFF's Response. http://www.defra.gov.uk/animalh/tb/publications/pdf/cresswell.pdf (2001).

  22. 22

    Woodroffe, R. et al. Welfare of badgers (Meles meles) subjected to culling: development and evaluation of a closed season. Anim. Welf. 14, 19–25 (2005)

    CAS  Google Scholar 

  23. 23

    Woodroffe, R. et al. Welfare of badgers (Meles meles) subjected to culling: patterns of trap-related injury. Anim. Welf. 14, 11–17 (2005)

    CAS  Google Scholar 

  24. 24

    Kirkwood, J. K. Humaneness of MAFF's Badger Despatch Procedures. http://www.defra.gov.uk/animalh/tb/publications/auditor/report.htm (2000).

  25. 25

    Le Fevre, A. M. et al. Changes in Badger Setts Over the First Three Years of the Randomised Badger Culling Trial. http://www.svepm.org.uk/posters/2003/LeFevre.pdf (2003).

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This study was funded and implemented by the Department of Environment, Food and Rural Affairs (Defra). We gratefully acknowledge the contribution made by the staff of Defra and its associated agencies. We also wish to thank the many farmers and land occupiers in the trial areas who allowed the experimental treatments to operate on their land. Finally, we thank D. Mollison for comments. Author Contributions F.J.B., C.A.D., D.R.C., G.G., J.P.M., W.I.M. and R.W. constitute the Independent Scientific Group on Cattle TB, which designed and oversees the RBCT. Data analyses were designed and performed by C.A.D., D.R.C., G.W., P.G., H.J., W.T.J and A.M.L.F. The manuscript was drafted by R.W. and C.A.D. with input from all co-authors.

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Correspondence to Christl A. Donnelly.

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Supplementary information

Supplementary Notes

This file contains the details of the design of the trial, how analyses were performed, results from extra analyses that were undertaken to support the findings reported in the main text and details of other studies which looked at the effects of badger culling. (DOC 1349 kb)

Supplementary Data

This file contains all raw data that was used to produce the main results. (XLS 101 kb)

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Donnelly, C., Woodroffe, R., Cox, D. et al. Positive and negative effects of widespread badger culling on tuberculosis in cattle. Nature 439, 843–846 (2006). https://doi.org/10.1038/nature04454

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