Malarial parasite which does not occur in India is

Options

A. Plasmodium vivax
B. P. falciparum
C. P. ovale
D. P. knowlesi

Answer

To solve the question regarding which malarial parasite does not occur in India, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: We need to identify which of the listed malarial parasites is not found in India.

2. **List the Options**: The options provided are:
- Option 1: Plasmodium vivex
- Option 2: Plasmodium falciferum
- Option 3: Plasmodium ovale
- Option 4: Plasmodium nollici

3. **Research the Parasites**:
- **Plasmodium vivex**: This species is prevalent in India and is one of the most common causes of malaria.
- **Plasmodium falciferum**: This is another predominant species found in India, known for causing severe malaria.
- **Plasmodium ovale**: This species is present in India but is rare compared to the other two.
- **Plasmodium nollici**: This species is not found in India. It has been reported in regions like Malaysia and Burma but is absent in India.

4. **Conclusion**: Based on the information gathered, the malarial parasite that does not occur in India is **Plasmodium nollici**.

5. **Select the Correct Option**: Therefore, the correct answer is **Option 4: Plasmodium nollici**.