Which one of the following statement is correct w.r.t. AIDS

Options

A. Drug addicts are least susceptible to HIV infection
B. AIDS patients are being fully cured cent percent with proper care and nutrition
C. HIV can be transmitted through eating food together with an infected person
D. Causative HIV retrovirus enters helper T-lymphocytes thus reducing their numbers

Answer

**Step-by-Step Solution:**

1. **Understanding AIDS**:
- AIDS stands for Acquired Immunodeficiency Syndrome. It is caused by the Human Immunodeficiency Virus (HIV), which is a retrovirus.

2. **What is a Retrovirus?**:
- A retrovirus is characterized by the presence of the enzyme reverse transcriptase, which allows it to convert RNA into DNA. This is the opposite of the normal transcription process where DNA is transcribed into RNA.

3. **Transmission of HIV/AIDS**:
- HIV is transmitted through various means:
- Sexual contact
- Blood transfusion from an infected person
- From an infected mother to her fetus
- Sharing used needles and syringes

4. **Effect of HIV on the Immune System**:
- Once HIV enters the bloodstream, it specifically attacks T-lymphocytes (helper T-cells), which play a crucial role in the immune response. This leads to a decrease in the number of T-lymphocytes and a reduction in the body’s immunity.

5. **Testing for HIV**:
- The confirmatory test for HIV is the ELISA test.

6. **Treatment**:
- While there is no complete cure for AIDS, it can be managed with proper medication, such as Zidovudine (also known as AZT).

7. **Analyzing the Options**:
- **Option 1**: "Drug addicts are least susceptible to HIV infection." - Incorrect, as drug addicts can be at high risk due to needle sharing.
- **Option 2**: "AIDS patients are being fully cured with proper care and nutrition." - Incorrect, as proper medication is necessary for treatment.
- **Option 3**: "HIV can be transmitted through eating food together with an infected person." - Incorrect, as HIV is not transmitted through food or water.
- **Option 4**: "Causative HIV retrovirus enters helper T-lymphocyte thus reducing their numbers." - Correct, as HIV specifically targets and reduces the number of T-lymphocytes.

8. **Conclusion**:
- The correct statement regarding AIDS is: "Causative HIV retrovirus enters helper T-lymphocyte thus reducing their numbers."