What is the mechanism by which the AIDS virus causes deficiency of immune system of the infected person?

Explanation

### Step-by-Step Solution:

1. **Understanding AIDS and HIV**:
- AIDS stands for Acquired Immunodeficiency Syndrome, which is caused by the Human Immunodeficiency Virus (HIV).
- HIV attacks the immune system, specifically targeting T-helper cells (also known as CD4 cells), leading to a weakened immune response.

**Hint**: Remember that AIDS is a syndrome resulting from the progression of HIV infection.

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