Question

Widal test is to confirm

• A. Malaria
• B. Typhoid
• C. Pneumonia
• D. Jaundice

Answer 1

The correct option is B

Typhoid

The correct option is B.

Explanation for correct option:

1. The Widal test is a serological test for the diagnosis of typhoid fever.
2. Typhoid is caused by the bacterium Salmonella typhii.
3. This bacteria is combined with serum containing antibodies from the infected persons.
4. A positive test indicates a high titer of antigen for the specific disease.

Explanation for incorrect options:

Option A:

1. Malaria is an infection caused by Plasmodium.
2. Hence, will not give antibody-antigen interaction.

Option C:

1. Pneumonia is caused by Streptococcus pneumonia.
2. The specific antigen does not test positive for the Widal test.

Option D:

1. Jaundice occurs due to metabolic dysfunction of the liver, gall bladder, or pancreas.
2. Hence, no antigen-antibody interaction.

Final Answer: The Widal test is to confirm typhoid.