ELISA test is used for the detection of

Options

A. HIV infection
B. Hepatitis-B
C. Both (1) and (2)
D. None of these above

Answer

**Step-by-Step Solution:**

1. **Understand the ELISA Test**: The ELISA (Enzyme-Linked Immunosorbent Assay) test is a widely used laboratory technique designed to detect and quantify proteins, such as antibodies or antigens, in a sample.

2. **Identify the Purpose of the ELISA Test**: The primary purpose of the ELISA test is to diagnose various diseases by detecting specific antibodies or antigens related to those diseases.

3. **Focus on HIV Infection**: One of the most significant applications of the ELISA test is in the detection of HIV (Human Immunodeficiency Virus) infection. This virus is responsible for causing AIDS (Acquired Immunodeficiency Syndrome).

4. **Mechanism of the Test**: The ELISA test works on the principle of the antigen-antibody reaction. When a sample containing HIV antigens is present, specific antibodies in the test will bind to these antigens, leading to a measurable signal.

5. **Confirmatory Testing**: While the ELISA test is a diagnostic tool, it is important to confirm positive results. The Western blot test is commonly used as a confirmatory test for HIV infection after an initial positive ELISA result.

6. **Conclusion**: Therefore, the ELISA test is primarily used for the detection of HIV infection, which is linked to the disease AIDS.

**Final Answer**: The ELISA test is used for the detection of HIV infection (AIDS).

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