AIDS is caused by HIV. Among the following, which one in not a mode of transmission of HIV ?

Options

A. Transfusion of contaminated blood
B. Sharing the infected needles
C. Shaking hands with infected persons
D. Sexual contact with infected persons

Answer

To solve the question regarding the modes of transmission of HIV, we will analyze each of the options provided. The goal is to identify which option does not represent a mode of transmission for HIV.

### Step-by-Step Solution:

1. **Understanding HIV and AIDS**:
- HIV (Human Immunodeficiency Virus) is the virus responsible for causing AIDS (Acquired Immunodeficiency Syndrome).
- HIV attacks the immune system, specifically the T lymphocytes (T cells), leading to a weakened immune response.

2. **Identifying Modes of Transmission**:
- HIV is primarily transmitted through specific body fluids. The common modes of transmission include:
- Sexual contact (through vaginal, anal, or oral sex).
- Sharing needles or syringes (especially in drug use).
- Blood transfusions with contaminated blood.
- From mother to child during childbirth or breastfeeding.

3. **Analyzing the Options**:
- **Option A**: Contaminated blood - This is a mode of transmission as HIV can be spread through transfusions of infected blood.
- **Option B**: Sharing infected needles - This is also a mode of transmission as it can transfer the virus from an infected person to a healthy person.
- **Option C**: Shaking hands with an infected person - This does not involve the exchange of body fluids and is not a mode of transmission for HIV.
- **Option D**: Sexual contact (vaginal fluid or sperm) - This is a recognized mode of transmission for HIV.

4. **Conclusion**:
- Among the options, **shaking hands with an infected person (Option C)** is not a mode of transmission for HIV. Therefore, this is the correct answer.

### Final Answer:
**C. Shaking hands with an infected person is not a mode of transmission of HIV.**