Multiple choice

Widal test is used to diagnose

  1. Typhoid Fever

  2. Bells Palsy

  3. Malaria

  4. Lyme Disease
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A Correct answer
Explanation

The Widal test is a serological test that detects agglutinating antibodies against O and H antigens of Salmonella typhi, the causative agent of typhoid fever. A significant rise in antibody titers between acute and convalescent samples confirms the diagnosis. Bells Palsy is diagnosed clinically, Malaria by blood smear, and Lyme Disease by ELISA/Western blot.

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