Multiple choice

The Widal test is used to diagnose

  1. typhoid fever

  2. Bell's palsy

  3. malaria

  4. Lyme disease

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A Correct answer
Explanation

The Widal test is used to diagnose typhoid fever. It is a test whereby bacteria that causes typhoid fever are mixed with serum containing specific antibodies obtained from an infected individual. It is a presumptive serological test for enteric fever or undulant fever.