Which of the following pathogens causes whooping cough ?

Options

A. Legionella sp.
B. Bordetella pertussis
C. Vibrio cholerae
D. Brucella melitensis

Answer

To determine which pathogen causes whooping cough, we can analyze the options given:

1. **Identify the options**:
- Option A: Legionella species
- Option B: Bordetella pertussis
- Option C: Vibrio cholera
- Option D: Lucella mellantensis

2. **Analyze each option**:
- **Legionella species**: This pathogen is known to cause Legionellosis, which presents flu-like symptoms. It does not cause whooping cough.
- **Bordetella pertussis**: This is the pathogen specifically known to cause whooping cough. It is a bacterium that affects the respiratory system.
- **Vibrio cholera**: This bacterium is responsible for cholera, which is characterized by severe diarrhea and dehydration, not whooping cough.
- **Lucella mellantensis**: This pathogen is associated with undulant fever and does not cause whooping cough.

3. **Conclusion**: Based on the analysis, the correct answer is **Option B: Bordetella pertussis**, as it is the only pathogen listed that is known to cause whooping cough.

**Final Answer**: Option B: Bordetella pertussis

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