Person suffering from AIDS cannot fight small ş infections.

Explanation

### Step-by-Step Solution:

1. **Understanding AIDS**:
- AIDS stands for Acquired Immunodeficiency Syndrome. It is caused by the Human Immunodeficiency Virus (HIV).
- The virus attacks the immune system, specifically targeting white blood cells, which are crucial for fighting infections.

2. **Impact on the Immune System**:
- When HIV enters the body, it begins to destroy white blood cells (also known as T-cells).
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