Identify the odd one from the diseases given below.

Options

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

Answer

To solve the question of identifying the odd one out from the diseases listed (malaria, filariasis, chikungunya, and ringworm), we will analyze each disease based on its causative agent and mode of transmission.

### Step-by-Step Solution:

1. **Identify the Diseases and Their Causative Agents:**
- **Malaria:** Caused by the Plasmodium parasite.
- **Filariasis:** Caused by the Wuchereria bancrofti roundworm.
- **Chikungunya:** Caused by the chikungunya virus.
- **Ringworm:** Caused by fungi (e.g., Trichophyton, Microsporum, Epidermophyton).

2. **Analyze the Mode of Transmission:**
- **Malaria:** Transmitted by the bite of infected female Anopheles mosquitoes.
- **Filariasis:** Transmitted by various blood-feeding insects, primarily mosquitoes.
- **Chikungunya:** Transmitted by the bite of infected Aedes mosquitoes.
- **Ringworm:** Transmitted through direct contact with infected individuals or contaminated surfaces; it is not transmitted by mosquitoes.

3. **Compare the Modes of Transmission:**
- Malaria, filariasis, and chikungunya are all transmitted by mosquitoes (vectors).
- Ringworm is transmitted through direct contact and does not involve any insect vector.

4. **Identify the Odd One Out:**
- Since malaria, filariasis, and chikungunya all involve mosquito transmission, while ringworm does not, we can conclude that **ringworm** is the odd one out.

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

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