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African trypanosomiasis in cattle: working with nature's solution.

M Murray, S J Black

    Veterinary Parasitology
    |August 1, 1985
    PubMed
    Summary

    Cattle can develop resistance to African trypanosomiasis through acquired or innate immunity. Understanding innate resistance mechanisms could lead to strategies for producing trypanosomiasis-resistant cattle.

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    Area of Science:

    • Veterinary Immunology
    • Parasitology
    • Animal Breeding

    Background:

    • Cattle exhibit both acquired and innate resistance to African trypanosomiasis.
    • Acquired resistance suggests potential for vaccines targeting metacyclic trypanosomes.
    • Innate resistance involves trypanotolerant breeds and underlying physiological factors.

    Purpose of the Study:

    • To explore strategies for enhancing cattle resistance to African trypanosomiasis.
    • To investigate the potential of vaccines for acquired immunity.
    • To understand and leverage factors contributing to innate resistance.

    Main Methods:

    • Exploitation and improvement of trypanotolerant cattle breeds.
    • Conventional breeding and management techniques, including embryo transfer.
    • Research into factors of innate resistance: trypanosome growth control, immune response, and anemia resistance.

    Main Results:

    • Acquired resistance points to vaccine development against metacyclic trypanosomes with limited variable antigens.
    • Innate resistance is being enhanced through breeding and management of trypanotolerant cattle.
    • Research is identifying key factors in innate resistance, including immune response and anemia resistance.

    Conclusions:

    • Identifying mechanisms of innate resistance can enable interventions like immunization or gene transfection.
    • These interventions could lead to highly productive, trypanosomiasis-resistant cattle.
    • Combining acquired and innate resistance strategies offers a comprehensive approach to disease control.

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