Quartan malaria is due to
Your patient shows paroxysms of malaria after every 72 hours. Which species of plasodium will be considered responsible to cause the infection

Options

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

Answer

To determine which species of Plasmodium is responsible for Quartan malaria, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks which species of Plasmodium causes Quartan malaria, characterized by paroxysms occurring every 72 hours.

2. **Identify the Types of Malaria**:
- Malaria is classified based on the species of Plasmodium involved. The main species include:
- **Plasmodium falciparum**: Causes malignant malaria, which is severe and can lead to death.
- **Plasmodium vivax**: Causes benign malaria, which is curable but can recur.
- **Plasmodium ovale**: Similar to P. vivax, it is also curable and not as severe.
- **Plasmodium malariae**: Known to cause Quartan malaria.

3. **Link Symptoms to Species**: Quartan malaria is specifically associated with symptoms that occur every 72 hours. This periodicity is a key characteristic of Plasmodium malariae.

4. **Conclusion**: Based on the periodicity of symptoms and the characteristics of the species, the responsible species for Quartan malaria is **Plasmodium malariae**.

### Final Answer:
Quartan malaria is due to **Plasmodium malariae**.

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