Which pair of the disease is viral ?

Options

A. Polio and measles
B. Rabies and mumps
C. AIDS and influenza
D. All of the above

Answer

To determine which pair of diseases is viral, we will analyze each pair of diseases mentioned in the question step by step.

### Step 1: Analyze the first pair - Polio and Measles
- **Polio**: This disease is caused by the poliovirus. It primarily affects the nervous system and can lead to paralysis.
- **Measles**: This is caused by the measles virus (morbillivirus) and is a highly contagious disease that affects the respiratory system.

**Conclusion for Step 1**: Both polio and measles are viral diseases.

### Step 2: Analyze the second pair - Rabies and Mumps
- **Rabies**: This disease is caused by the rabies virus (lyssavirus) and is transmitted through the bite of an infected animal. It can lead to severe neurological symptoms and is often fatal if untreated.
- **Mumps**: This disease is caused by the mumps virus (paramyxovirus) and primarily affects the salivary glands, leading to swelling and pain.

**Conclusion for Step 2**: Both rabies and mumps are viral diseases.

### Step 3: Analyze the third pair - AIDS and Influenza
- **AIDS**: Acquired Immunodeficiency Syndrome is caused by the human immunodeficiency virus (HIV), which attacks the immune system.
- **Influenza**: This is a viral infection caused by various strains of the influenza virus (including influenza A, B, C, and D).

**Conclusion for Step 3**: Both AIDS and influenza are viral diseases.

### Step 4: Final Conclusion
Now that we have analyzed all three pairs:
1. Polio and Measles - Viral
2. Rabies and Mumps - Viral
3. AIDS and Influenza - Viral

Since all pairs consist of viral diseases, the correct answer to the question is **Option D: All of the above**.

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