Tropical Animal Health and Production

, Volume 44, Issue 1, pp 63–70 | Cite as

Temporal and spatial distribution of cattle anthrax outbreaks in Zimbabwe between 1967 and 2006

  • Silvester Maravanyika Chikerema
  • D. M. Pfukenyi
  • Gift Matope
  • E. Bhebhe
Original Research

Abstract

This retrospective study aimed to assess the spatial and temporal distribution of anthrax and to identify risk areas in Zimbabwe. The data were extracted from the monthly and annual reports of the Division of Livestock Production and Veterinary Services for the period 1967 to 2006. The data were analyzed in relation to temporal and spatial factors. The hot-dry season was found to be significantly (X2 = 847.8, P < 0.001) associated with the occurrence of anthrax in cattle, and the disease was found to be approximately three times more likely to occur during this season compared to other seasons. Anthrax outbreaks demonstrated a gradual temporal increase from an annual mean of three outbreaks for the 5-year period (1967–1971) to 42 for the 5-year period (2002–2006). Similarly, the data demonstrated a spatial increase in the number of districts affected by anthrax between 1967 and 2006, with 12 districts affected for the 10-year period (1967–1976) that expanded to 42 districts for the 10-year period (1997–2006). The majority of outbreaks (83.7%) were recorded in rural areas, and 11 districts were found to be at a higher risk than others. There is need to develop differential vaccination strategy, other control strategies and preventive recommendations to reduce anthrax in high-risk districts. In the medium- to low-risk districts, maintenance of effective surveillance systems and improvement of awareness is very important to detect and contain outbreaks early.

Keywords

Anthrax Cattle Distribution Outbreaks Spatial Temporal Zimbabwe 

References

  1. Beyer, W. And Turnbull, P.C.B., 2009. Anthrax in animals, Molecular Aspects of Medicine, 30, 481–489.PubMedCrossRefGoogle Scholar
  2. Blackburn, J.K., McNyset, K.M., Curtis, A. and Hugh-Jones, M.E., 2007. Modeling the geographic distribution of Bacillus anthracis, the causative agent of anthrax disease, for the contiguous United States using predictive ecologic niche modeling, American Journal of Tropical Medicine and Hygiene, 77, 1103–1110.PubMedGoogle Scholar
  3. Clegg, S.B., Turnbull, P.C.B., Foggin, M. and Lindeque, P.M., 2007. Massive outbreak of anthrax in wildlife in the Malilangwe Wildlife Reserve, Zimbabwe, Veterinary Record, 160, 113--18PubMedCrossRefGoogle Scholar
  4. Cherkasskiy, B.L., 1999. A national register of historic and contemporary anthrax foci, Journal of Applied Microbiology, 87, 1921–95.CrossRefGoogle Scholar
  5. Davies, J.C. A., 1980. Transmission of anthrax, Central African Journal of Medicine, 26, 47.PubMedGoogle Scholar
  6. Davies, J.C.A., 1982. A major epidemic of anthrax in Zimbabwe: 1, Central African Journal of Medicine, 28, 291–298.PubMedGoogle Scholar
  7. Davies, J.C.A., 1983. A major epidemic of anthrax in Zimbabwe, Central African Journal of Medicine, 29, 8–12.PubMedGoogle Scholar
  8. Davies, J.C.A., 1985. A major epidemic of anthrax in Zimbabwe, 2: the experience at the Beatrice Road Infectious Diseases Hospital, Harare, Central African Journal of Medicine, 31, 176–180.PubMedGoogle Scholar
  9. De Vos, V., 1990. The ecology of anthrax in Kruger National Park, South Africa, Salisbury Medical Bulletin, 68 (special supplement), 19–23.Google Scholar
  10. Dohoo, I., Martin, W., Stryhn, H. Veterinary Epidemiologic Research: AVC Inc., Charlottetown, Prince Edward Island, 2003.Google Scholar
  11. Dragon, D.C. and Rennie, R.P., 1995. The ecology of anthrax spores: tough but not invincible, Canadian Veterinary Journal, 36, 295–301.Google Scholar
  12. Dragon, D.C., Elkin, B.T., Nishi, J.S. and Ellsworth, T.R., 1999. A review of anthrax in Canada and implications for research on the disease in northern bison, Journal of Applied Microbiology, 87, 208–213.PubMedCrossRefGoogle Scholar
  13. Fasanella, A., Galante, D., Garofolo, G. and Hugh Jones, M., 2010. Anthrax undervalued zonoosis, Veterinary Microbiology, 140, 318–331.PubMedCrossRefGoogle Scholar
  14. Hambleton, P., Carman, J.A. and Melling J., 1984. Anthrax: the disease in relation to vaccines, Vaccine, 2, 125–131.PubMedCrossRefGoogle Scholar
  15. Hugh-Jones, M. and Blackburn, J., 2009. The ecology of Bacillus anthracis, Molecular Aspects of Medicine, 30, 356–367.PubMedCrossRefGoogle Scholar
  16. Johnson, R., 2005. Epizootiology and ecology of anthrax. In: United States Department of Agriculture, Center for Emerging Infections, Centers for Disease Control, Veterinary Services Report.Google Scholar
  17. Keim, P., Van Ert, M.N., Pearson, T., Vogler, A.J., Huynh, L.Y. and Wagner, D.M., 2003. Anthrax molecular epidemiology and forensics: using the appropriate marker for different evolutionary scales, Infection, Genetics and Evolution, 4, 205–213.CrossRefGoogle Scholar
  18. Kobuch, W. E., Davies, J., Fleischer, K., Isaacson, M. and Turnbull, P. C. B., 1990. A clinical and epidemiological study of 621 patients with anthrax in western Zimbabwe, Proceedings of the international workshop on anthrax, Salisbury Medical Bulletin, 68(supplement), 34–38.Google Scholar
  19. Lawrence, J. A., Foggin, C. M. and Norval, R. A., 1980. The effects of war on the control of diseases of livestock in Rhodesia (Zimbabwe), Veterinary Record, 107, 82–85.PubMedCrossRefGoogle Scholar
  20. Levy, L.M., Baker, N. and Meyer, M.P., 1981. Anthrax meningitis in Zimbabwe, Central African Journal of Medicine, 27, 101–104.PubMedGoogle Scholar
  21. Lindeque, P.M. and Turnbull, P.C., 1994. Ecology and epidemiology of anthrax in Etosha National Park, Namibia, Onderstepoort Journal of Veterinary Research, 61, 71–83.PubMedGoogle Scholar
  22. Matope, G., Bhebhe, E., Muma, J.B, Lund, A., Skjerve, E., (2010) Herd-level factors for Brucella seropositivity in cattle reared in smallholder dairy farms of Zimbabwe. Preventive Veterinary Medicine, 94, 213–221.PubMedCrossRefGoogle Scholar
  23. Mckendrick, D.R.A., 1980. Anthrax and its transmission to humans, Central African Journal of Medicine, 26, 126–128.PubMedGoogle Scholar
  24. Nass, M., 1992. Anthrax epizootic in Zimbabwe 1978–1980: due to deliberate spread?, PSR Quarterly 2, 198–209.Google Scholar
  25. OIE., 1997. OIE Animal Health and Disease Control Report 1997. Office International Des Epizooties, Paris, France.Google Scholar
  26. Pugh, A.O. and Davies, J.C.A., 1990. Human anthrax in Zimbabwe, Salisbury Medical Bulletin, 68 (special supplement), 32–33.Google Scholar
  27. Smith, K.L., De Vos, V., Bryden, H.B., Hugh-Jones, M.E., Klevytska, A., Price, L.B., Keim, P. and Scholl, D.T., 1999. Meso-scale ecology of anthrax in southern Africa: a pilot study of diversity and clustering, Journal of Applied Microbiology, 87, 204–207.PubMedCrossRefGoogle Scholar
  28. Smith, K.L., De Vos, V., Price, L.B., Hugh-Jones, M.E. and Keim, P., 2000. Bacillus anthracis diversity in Kruger National Park, Journal of Clinical Microbiology, 38, 3780–3784.PubMedGoogle Scholar
  29. Starr, J.R., 1988. Weather, climate and animal performance, Technical Note No. 190, World Meteorological Organization, Geneva, Switzerland.Google Scholar
  30. Stein, C.D., 1945. The history and distribution of anthrax in livestock in the United States, Veterinary Medicine (Praha), 40, 340–349.Google Scholar
  31. Stein, C.D. and van Ness, G.B., 1955. A ten year survey of anthrax in livestock with special reference to outbreaks in 1954, Veterinary Medicine (Praha), 50, 579–590.Google Scholar
  32. Webster, A.J.F., 1981. Weather and infectious disease in cattle, Veterinary Record, 108, 183–187.PubMedCrossRefGoogle Scholar
  33. WHO, 2005. Guidelines for the Surveillance and Control of anthrax in humans and animals, Emerging and Communicable Disease Surveillance, Control. http://www.who.int/emc.
  34. Turnbull, P.C.B., Hudson, R.A., Ward, M.J., Jones, M.N., Quinn, C.P., Finnie, N.J., Duggleby, C.J., Kramer, J.M. and Melling, J., 1990. Bacillus anthracis but not always anthrax, Journal of Applied Bacteriology, 72, 21–28.Google Scholar
  35. Turner, M., 1980. Anthrax in humans in Zimbabwe, Central African Journal of Medicine, 26, 291–298.Google Scholar

Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • Silvester Maravanyika Chikerema
    • 1
  • D. M. Pfukenyi
    • 1
  • Gift Matope
    • 2
  • E. Bhebhe
    • 2
  1. 1.Department of Clinical Veterinary Studies, Faculty of Veterinary ScienceUniversity of ZimbabweHarareZimbabwe
  2. 2.Department of Paraclinical Veterinary Studies, Faculty of Veterinary ScienceUniversity of ZimbabweHarareZimbabwe

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