Which of these options doesn't have a pair of diseases caused by organisms of the same genus ?

Options

A. Tuberculosis and Leprosy
B. Tetanus and Food poisoning
C. African sleeping sickness and chaga's disease
D. Anthrax and Plague

Answer

To solve the question, "Which of these options doesn't have a pair of diseases caused by organisms of the same genus?", we need to analyze each option provided.

### Step-by-Step Solution:

1. **Understand the Question**: We need to identify which option contains diseases caused by organisms that do not belong to the same genus.

2. **Review Each Option**:
- **Option A: Tuberculosis and Leprosy**
- Tuberculosis is caused by *Mycobacterium tuberculosis*.
- Leprosy is caused by *Mycobacterium leprae*.
- Both diseases are caused by organisms from the genus *Mycobacterium*.
- **Conclusion**: Same genus.

- **Option B: Tetanus and Food Poisoning**
- Tetanus is caused by *Clostridium tetani*.
- Food poisoning (specifically botulism) is caused by *Clostridium botulinum*.
- Both diseases are caused by organisms from the genus *Clostridium*.
- **Conclusion**: Same genus.

- **Option C: African Sleeping Sickness and Chagas Disease**
- African Sleeping Sickness is caused by *Trypanosoma brucei*.
- Chagas Disease is caused by *Trypanosoma cruzi*.
- Both diseases are caused by organisms from the genus *Trypanosoma*.
- **Conclusion**: Same genus.

- **Option D: Anthrax and Plague**
- Anthrax is caused by *Bacillus anthracis*.
- Plague is caused by *Yersinia pestis*.
- The organisms causing these diseases belong to different genera (*Bacillus* and *Yersinia*).
- **Conclusion**: Different genera.

3. **Identify the Correct Answer**: Since options A, B, and C all have diseases caused by organisms of the same genus, the option that does not is:
- **Answer**: D. Anthrax and Plague.