Give the full form of ELISA, which disease can b e detected using it? Discuss the principle underlying the test.

Explanation

### Step-by-Step Solution:

1. **Identify the Full Form of ELISA**:
- The full form of ELISA is "Enzyme-Linked Immunosorbent Assay".

2. **Identify the Disease Detected by ELISA**:
- ELISA is commonly used to detect the presence of the HIV virus, which is responsible for AIDS (Acquired Immunodeficiency Syndrome).

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