A disease which can be transferred from mother to child through placenta is

Options

A. German measles
B. Syphilis
C. AIDS
D. All of these

Answer

To solve the question "A disease which can be transferred from mother to child through placenta is:", we will analyze each option provided and determine if they can be transmitted from mother to child via the placenta.

### Step-by-Step Solution:

1. **Understand the Question**: The question is asking for diseases that can be transmitted from a mother to her child during pregnancy through the placenta.

2. **Evaluate the First Option - German Measles (Rubella)**:
- German measles, also known as rubella, is a viral infection caused by the rubella virus.
- It is known that rubella can be transmitted from the mother to the fetus through the placenta, especially if the mother contracts the virus during the first trimester of pregnancy.
- **Conclusion**: This option is valid.

3. **Evaluate the Second Option - Syphilis**:
- Syphilis is a sexually transmitted disease caused by the bacterium Treponema pallidum.
- This disease can also be transmitted from the mother to the child during pregnancy through the placenta.
- **Conclusion**: This option is valid.

4. **Evaluate the Third Option - AIDS**:
- AIDS (Acquired Immunodeficiency Syndrome) is caused by the Human Immunodeficiency Virus (HIV).
- HIV can be transmitted from an infected mother to her child during pregnancy, childbirth, or breastfeeding. Transmission through the placenta is possible.
- **Conclusion**: This option is valid.

5. **Evaluate the Last Option - All of These**:
- Since we have established that German measles, syphilis, and AIDS can all be transmitted from mother to child through the placenta, the last option stating "all of these" is correct.
- **Conclusion**: This option is valid.

### Final Answer:
The correct answer is **All of these**.

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