Which of the following diseases are caused by parasitic worms?

Options

A. Ascariasis
B. Malaria
C. Plague
D. Elephantiasis

Answer

To determine which diseases are caused by parasitic worms, we can analyze the options provided: Ascorrhosis, malaria, plague, and elephantiasis.

1. **Identify the diseases**:
- Ascorrhosis
- Malaria
- Plague
- Elephantiasis

2. **Research each disease**:
- **Ascorrhosis**: This disease is indeed caused by a parasitic worm known as Ascaris lumbricoides. It primarily infects the small intestine.
- **Malaria**: This disease is caused by a protozoan parasite (Plasmodium species) and is transmitted by mosquitoes, not by worms.
- **Plague**: This disease is caused by the bacterium Yersinia pestis and is transmitted by fleas, not by worms.
- **Elephantiasis**: This disease is caused by parasitic worms, specifically filarial worms (such as Wuchereria bancrofti), which affect the lymphatic system.

3. **Conclusion**:
- The diseases caused by parasitic worms from the given options are **Ascorrhosis** and **Elephantiasis**.

### Summary of the Solution:
- **Diseases caused by parasitic worms**:
- Ascorrhosis (caused by Ascaris lumbricoides)
- Elephantiasis (caused by filarial worms)