Widal Test is carried out to test :

Options

A. HIV/AIDS
B. Typhoid fever
C. Malaria
D. Diabetes mellitus

Answer

**Step-by-Step Solution:**

1. **Understanding the Widal Test**: The Widal test is a serological test used to diagnose typhoid fever. It detects the presence of specific antibodies (agglutinins) against the bacteria Salmonella Typhi in the patient's serum.

2. **Identifying the Options**: The question provides several options: HIV, AIDS, typhoid fever, malaria, and diabetes mellitus. We need to determine which of these conditions is tested using the Widal test.

3. **Analyzing Each Option**:
- **HIV/AIDS**: This condition is tested using assays like ELISA (Enzyme-Linked Immunosorbent Assay) and not the Widal test.
- **Typhoid Fever**: This is caused by the bacterium Salmonella Typhi. The Widal test was developed specifically to diagnose this infection.
- **Malaria**: This disease is caused by the Plasmodium protozoan and is typically diagnosed using blood smears or rapid diagnostic tests, not the Widal test.
- **Diabetes Mellitus**: This condition is diagnosed through blood sugar tests, such as the A1c test, and is unrelated to the Widal test.

4. **Conclusion**: Based on the analysis, the Widal test is specifically used to test for typhoid fever caused by Salmonella Typhi.

5. **Final Answer**: The Widal test is carried out to test **typhoid fever**.

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