Which of the following are viral and mosquito borne diseases respectively ?

Options

A. Valantidiasis and chikungunya
B. Kala-azar and malaria
C. Whooping cough and malaria
D. Measles and dengue

Answer

To determine which of the following are viral and mosquito-borne diseases respectively, we will analyze each option step by step.

### Step-by-Step Solution:

1. **Identify the Diseases in Each Option**:
- The options provided are:
- Option 1: Valentidiasis and Chikungunya
- Option 2: Kala Azad and Malaria
- Option 3: Whooping Cough and Malaria
- Option 4: Measles and Dengue

2. **Analyze Option 1: Valentidiasis and Chikungunya**:
- **Valentidiasis**: This is a protozoan infection caused by Balantidium. It is not a viral disease.
- **Chikungunya**: This disease is caused by the Chikungunya virus and is transmitted by the Aedes aegypti mosquito.
- **Conclusion**: This option is incorrect as Valentidiasis is not viral.

3. **Analyze Option 2: Kala Azad and Malaria**:
- **Kala Azad**: This is caused by the protozoan parasite Leishmania donovani. It is not a viral disease.
- **Malaria**: This is caused by the protozoan Plasmodium and is transmitted by the Anopheles mosquito.
- **Conclusion**: This option is also incorrect as neither disease is viral.

4. **Analyze Option 3: Whooping Cough and Malaria**:
- **Whooping Cough**: This disease is caused by the bacterium Bordetella pertussis. It is not a viral disease.
- **Malaria**: Again, caused by the protozoan Plasmodium and transmitted by the Anopheles mosquito.
- **Conclusion**: This option is incorrect as Whooping Cough is not viral.

5. **Analyze Option 4: Measles and Dengue**:
- **Measles**: This disease is caused by the rubeola virus, which is a viral infection.
- **Dengue**: This disease is caused by the dengue virus, which is an arbovirus from the Flavivirus group and is transmitted by the Aedes aegypti mosquito.
- **Conclusion**: This option is correct as Measles is viral and Dengue is mosquito-borne.

### Final Answer:
The correct option that lists a viral disease and a mosquito-borne disease respectively is **Option 4: Measles and Dengue**.