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The Changing Landscape of Bovine Tuberculosis in Tanzania

  • Bugwesa Z. Katale
  • Hezron E. Nonga
  • Rudovick R. Kazwala
Chapter

Abstract

The herd prevalence of BTB in cattle in Tanzania ranges from 0.2 to 13.2%, and M. bovis has also been isolated from a range of wildlife species and from humans. Despite the apparent current low prevalence of M. bovis in cattle in the country, there are known foci of infection and a large variety of M. bovis strains circulating in the population. This large variety of strains is assumed to be the consequence of the extensive and unrestricted traditional pastoral migratory movement of cattle in rural areas and, more recently, the establishment of M. bovis-infected wildlife reservoirs. Hitherto, the control and eradication of BTB infection in Tanzania have been impeded by the complexity of the traditional husbandry practices and the lack of application of the test-and-slaughter policy as the disease is considered to have little impact on livestock economics in Tanzania. However, because of its BTB-positive status, the country is subject to the international restrictions on trade with M. bovis-infected animals and animal products, and this has a negative impact on potential income from this source. In addition, given the zoonotic implications of BTB for people who are exposed to the infection, critical assessment of the situation is required, and the current policies governing the control of the diseases should be reassessed.

In this chapter, we review the current status of BTB in livestock and wildlife, the risk factors that influence the transmission of the infection, the mycobacterial genetic diversity, and the challenges facing the regulatory authorities to control the disease in Tanzania.

Keywords

Bovine tuberculosis M. bovis Genetic diversity Prevalence Risk factors Tanzania Wildlife Zoonotic tuberculosis 

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Bugwesa Z. Katale
    • 1
  • Hezron E. Nonga
    • 2
  • Rudovick R. Kazwala
    • 2
  1. 1.Tanzania Wildlife Research Institute (TAWIRI)ArushaTanzania
  2. 2.Department of Veterinary Medicine and Public HealthSokoine University of Agriculture (SUA)MorogoroTanzania

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