Write the full form of ELISA. Give an example of the clinical application of ELISA test.

Explanation

### Step-by-Step Solution:

1. **Identify the Full Form of ELISA**:
- ELISA stands for **Enzyme-Linked Immunosorbent Assay**.

2. **Explain What ELISA Is**:
- ELISA is an analytical assay used to detect the presence of antigens or antibodies in a sample. It operates on the principle of antigen-antibody interactions, where a specific antigen binds to a specific antibody, allowing for detection.

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