Identify the odd one from the diseases given below.

Options

A. Malarial
B. Filariasis
C. Chikungunya
D. Ringworm

Answer

To identify the odd one out from the diseases listed: Malarial filariasis, chikungunya, and ringworm, we will analyze each disease based on their causative agents and modes of transmission.

### Step-by-Step Solution:

1. **Identify the Diseases and Their Causative Agents:**
- **Malarial Filariasis**: Caused by the filarial worm (Wuchereria bancrofti) and is transmitted by female mosquitoes (specifically, the Anopheles mosquito).
- **Chikungunya**: Caused by the chikungunya virus and is also transmitted by female mosquitoes (primarily Aedes mosquitoes).
- **Ringworm**: Caused by fungi from the genera Microsporum, Trichophyton, and Epidermophyton. This disease is not transmitted by mosquitoes but rather through direct contact with infected individuals or contaminated surfaces.

2. **Analyze the Transmission Methods:**
- Both Malarial filariasis and chikungunya are vector-borne diseases transmitted by mosquitoes.
- Ringworm, on the other hand, is a fungal infection that spreads through direct contact and not through mosquito bites.

3. **Determine the Odd One Out:**
- Since Malarial filariasis and chikungunya are both transmitted by mosquitoes, while ringworm is transmitted through contact and not by a mosquito vector, ringworm is the odd one out.

4. **Conclusion:**
- The disease that is different from the others in terms of causative agent and transmission method is **ringworm**.

### Final Answer:
**Ringworm** is the odd one out.