1. Malaria (vector female Anopheles), Dengue (vector female Aedes), kala-azar (vector sandfly Phlebotomus).

    Malaria (vector female Anopheles), Dengue (vector female Aedes), kala-azar (vector sandfly Phlebotomus).

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  2. (a) Edward Jenner; (b) Tuberculosis (T.B.) and polio or tetanus and diphtheria.

    (a) Edward Jenner;
    (b) Tuberculosis (T.B.) and polio or tetanus and diphtheria.

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    • 4