Consider the following statements.
I.People should get vaccination to avoid infection.
II. Eradication of vectors are necessary in diseases like malaria and filariasis.
III. Dengue and chikungunya , both are spread by Culex mosquito.
Which of the statements given above are correct ?

Options

A. I,II and III
B. I and II
C. I and III
D. II and III

Answer

To determine which of the statements are correct, we will analyze each statement one by one.

### Step 1: Analyze Statement I
**Statement I:** People should get vaccination to avoid infection.

Vaccination is a preventive measure that helps the immune system recognize and fight off specific pathogens. Vaccines contain weakened or inactive parts of a particular organism (antigen) that triggers an immune response. This statement is correct.

### Step 2: Analyze Statement II
**Statement II:** Eradication of vectors is necessary in diseases like malaria and filariasis.

Malaria and filariasis are both transmitted by specific vectors (mosquitoes). To control and prevent these diseases, it is essential to manage and eradicate these vectors. Therefore, this statement is also correct.

### Step 3: Analyze Statement III
**Statement III:** Dengue and chikungunya are both spread by Culex mosquito.

This statement is incorrect. Dengue and chikungunya are primarily spread by the Aedes mosquito, not the Culex mosquito. Therefore, this statement is false.

### Conclusion
Based on the analysis:
- Statement I is correct.
- Statement II is correct.
- Statement III is incorrect.

Thus, the correct statements are I and II.

### Final Answer
The correct statements are I and II.

---