Hydalid diseases is caused by

Options

A. Echinococcus
B. Echinus
C. Hymenolepis
D. Schistosoma

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the causative agent of Hydatid disease.

2. **Identifying Hydatid Disease**: Hydatid disease is also known as cystic echinococcosis. It is a parasitic disease caused by the larval stage of the Echinococcus tapeworm.

3. **Recognizing the Options**: The options provided are:
- A) Echinococcus
- B) Echinus
- C) Hymenolepis
- D) Cysto-Soma

4. **Analyzing the Options**:
- **Echinococcus**: This is the correct genus that causes Hydatid disease.
- **Echinus**: This is not related to Hydatid disease.
- **Hymenolepis**: This is a genus of tapeworms but does not cause Hydatid disease.
- **Cysto-Soma**: This is also not related to Hydatid disease.

5. **Conclusion**: Based on the analysis, Hydatid disease is caused by the genus **Echinococcus**, specifically the species **Echinococcus granulosus**.

**Final Answer**: Hydatid disease is caused by **Echinococcus**.

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