Which of the following is a bacteria disease?

Options

A. Hepatitis B
B. Poliomyelitis
C. Tetanus
D. Malaria

Answer

To determine which of the following is a bacterial disease, we will analyze each option provided:

1. **Hepatitis B**:
- This disease is caused by a virus known as the Hepatitis B virus. It primarily affects the liver.
- **Conclusion**: Not a bacterial disease.

2. **Poliomyelitis (Polio)**:
- Polio is caused by the poliovirus, which attacks the spinal cord and can lead to paralysis.
- **Conclusion**: Not a bacterial disease.

3. **Tetanus**:
- Tetanus is caused by a bacterium called *Clostridium tetani*. This bacterium affects the nerves and muscles, particularly impacting the jaw and neck muscles.
- **Conclusion**: This is a bacterial disease.

4. **Malaria**:
- Malaria is caused by a protozoan parasite known as *Plasmodium*. It is transmitted through the bite of an Anopheles mosquito.
- **Conclusion**: Not a bacterial disease.

After analyzing all the options, the only disease that is caused by bacteria is **Tetanus**.

**Final Answer**: Tetanus (Option no. 3).

---