Widal test is performed as a diagnostic test in

Tuberculosis

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Typhoid

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Cholera

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Tetanus

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Solution

The correct option is A Typhoid
Widal test is most widely used diagnostic test for typhoid fever. It is based on the principle of agglutination of antigen and antibody. It detects the presence agglutinating antibodies for antigens (H and O) of Salmonella typhi in patients serum with typhoid and paratyphoid fever.
So, the correct answer is option B.

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Widal test is carried out to test

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