Filariasis is caused due to

Options

A. Virus
B. Protozoan
C. Bacterium
D. Helminthes

Answer

**Step-by-Step Solution:**

1. **Understanding Filariasis**: Filariasis is a disease that affects humans and is primarily characterized by the swelling of body parts due to the accumulation of lymphatic fluid.

2. **Identifying the Causative Agent**: The disease is caused by parasitic worms. Specifically, filariasis is caused by filarial worms.

3. **Types of Filarial Worms**: The most common types of filarial worms responsible for filariasis are Wuchereria bancrofti, Brugia malayi, and Brugia timori. These worms belong to the group known as nematodes or roundworms.

4. **Transmission**: Filarial worms are transmitted to humans through the bites of infected mosquitoes, which act as vectors.

5. **Conclusion**: Therefore, filariasis is caused by filarial worms, which are a type of roundworm.

**Final Answer**: Filariasis is caused due to filarial worms, specifically Wuchereria bancrofti.

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