Rinderpest disease is caused by

Options

A. Bacillus species
B. Morbillivirus
C. Theileria
D. None of the above

Answer

**Step-by-Step Solution:**

1. **Understanding Rinderpest Disease**:
- Rinderpest is a highly infectious viral disease that primarily affects ruminants, which include animals like cattle, sheep, buffalo, giraffes, and deer.

2. **Symptoms of Rinderpest**:
- The disease is characterized by several symptoms, including:
- Fever
- Diarrhea
- Oral erosions in affected animals
- These symptoms can lead to a high mortality rate among the infected animals.

3. **Identifying the Causative Agent**:
- Rinderpest is caused by a virus, specifically a member of the Morbillivirus genus.
- Morbillivirus is part of the Paramyxovirus family and is known for causing highly infectious diseases in animals.

4. **Evaluating the Options**:
- The options provided are:
- A) Bacillus species
- B) Morbillivirus
- C) Thyleria
- D) None of the above
- Bacillus species is known to cause other diseases (like anthrax) and is therefore incorrect.
- Thyleria is also incorrect as it refers to a different type of pathogen (protozoan).
- The correct answer is Morbillivirus, which is responsible for Rinderpest disease.

5. **Conclusion**:
- Based on the information, the correct answer to the question "Rinderpest disease is caused by" is **Morbillivirus**.