Antiretroviral drugs are useful in the treatment of

Options

A. an RNA-containing viral-borne disease
B. lgE mediated allergy
C. Autoimmune disorders which affect joints
D. deficiency disease

Answer

**Step-by-Step Solution:**

1. **Understanding Antiretroviral Drugs:**
- Antiretroviral drugs are specifically designed to treat infections caused by retroviruses. Retroviruses are a type of virus that have RNA as their genetic material instead of DNA.

2. **Identifying the Retrovirus in Humans:**
- In humans, the most notable retrovirus is the Human Immunodeficiency Virus (HIV), which leads to Acquired Immunodeficiency Syndrome (AIDS). This virus is known for its severe impact on the immune system.

3. **Mechanism of HIV:**
- HIV targets and destroys immune cells, particularly CD4+ T lymphocytes, which are crucial for immune response. Once HIV enters a host cell, it converts its RNA into DNA and integrates it into the host's genome, effectively turning the host cell into a factory for producing more viruses.

4. **Role of Antiretroviral Drugs:**
- Antiretroviral drugs work by inhibiting various stages of the HIV life cycle, thereby slowing down the replication of the virus and helping to manage the infection. Although these drugs do not cure HIV/AIDS, they can prolong life and improve the quality of life for those infected.

5. **Evaluating Other Options:**
- The question also presents other conditions such as IgE mediated allergy, autoimmune disorders, and deficiency diseases. These conditions are not caused by retroviruses, and thus antiretroviral drugs would not be effective treatments for them.

6. **Conclusion:**
- The correct answer is that antiretroviral drugs are useful in the treatment of RNA-containing viral-borne diseases, specifically HIV/AIDS.

**Final Answer:**
Antiretroviral drugs are useful in the treatment of HIV/AIDS.

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