Which of the following is a set of bacterial diseases?

Options

A. Cholera, typhoid and mumps
B. Diphtheria, leprosy and plague
C. Malaria, mumps and poliomyelitis
D. Tetanus, tuberculosis and measles

Answer

To determine which of the given options is a set of bacterial diseases, we will analyze each option and identify the causative agents of the diseases listed.

### Step-by-Step Solution:

1. **Analyze Option A: Cholera, Typhoid, and Mumps**
- **Cholera**: Caused by *Vibrio cholerae* (bacterial).
- **Typhoid**: Caused by *Salmonella typhi* (bacterial).
- **Mumps**: Caused by the mumps virus (viral).
- **Conclusion**: This option contains a viral disease (mumps), so it is not a set of bacterial diseases.

2. **Analyze Option B: Diphtheria, Leprosy, and Plague**
- **Diphtheria**: Caused by *Corynebacterium diphtheriae* (bacterial).
- **Leprosy**: Caused by *Mycobacterium leprae* (bacterial).
- **Plague**: Caused by *Yersinia pestis* (bacterial).
- **Conclusion**: All three diseases in this option are caused by bacteria, making this a set of bacterial diseases.

3. **Analyze Option C: Malaria, Mumps, and Poliomyelitis**
- **Malaria**: Caused by *Plasmodium* species (protozoan).
- **Mumps**: Caused by the mumps virus (viral).
- **Poliomyelitis**: Caused by the poliovirus (viral).
- **Conclusion**: This option contains only viral and protozoan diseases, so it is not a set of bacterial diseases.

4. **Analyze Option D: Tetanus, Tuberculosis, and Measles**
- **Tetanus**: Caused by *Clostridium tetani* (bacterial).
- **Tuberculosis**: Caused by *Mycobacterium tuberculosis* (bacterial).
- **Measles**: Caused by the measles virus (viral).
- **Conclusion**: This option includes a viral disease (measles), so it is not a set of bacterial diseases.

### Final Conclusion:
After analyzing all options, the correct answer is **Option B: Diphtheria, Leprosy, and Plague**, as all three diseases are caused by bacteria.

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