Which is the main bacterium responsible for the formation of pus

Options

A. Streptococcus
B. Staphylococcus
C. Sarcina
D. Clostridium

Answer

To answer the question "Which is the main bacterium responsible for the formation of pus?", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: We need to identify the bacterium primarily responsible for pus formation.

2. **Evaluate the Options**: The options provided include various bacteria. We will analyze each one to determine which is linked to pus formation.

3. **Analyze Streptococcus**:
- Streptococcus produces hemolysins, which are substances that break down red blood cells (hemolysis).
- Since its primary action is on red blood cells and not directly related to pus formation, we can eliminate this option.

4. **Analyze Staphylococcus**:
- The specific species of interest here is *Staphylococcus aureus*.
- Infections caused by *Staphylococcus aureus* can lead to the formation of abscesses, which are cavities filled with pus.
- The pus consists of *Staphylococcus aureus*, white blood cells (WBCs), and dead tissues that have been destroyed by bacterial toxins.
- Therefore, *Staphylococcus aureus* is a strong candidate for being the main bacterium responsible for pus formation.

5. **Analyze Sarsenia**:
- This bacterium is known for causing skin infections and producing a peculiar smell.
- However, it is not primarily associated with pus formation, so we can eliminate this option.

6. **Analyze Clostridium**:
- Clostridium species are known for causing diseases like botulism and gas gangrene.
- While they can cause severe infections, they are not primarily responsible for pus formation, so this option can also be eliminated.

7. **Conclusion**: After evaluating all the options, the main bacterium responsible for the formation of pus is *Staphylococcus aureus*.

### Final Answer:
The main bacterium responsible for the formation of pus is **Staphylococcus aureus**.

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