Oral vaccine prevents the attack of

Options

A. typhoid
B. polio
C. tetanus
D. cholera

Answer

**Step-by-Step Solution:**

1. **Understanding Vaccines**: Vaccines are biological preparations that provide acquired immunity to a particular infectious disease. They are made from weakened or killed forms of the pathogen, its toxins, or surface proteins.

2. **Types of Vaccines**: There are different types of vaccines, including oral and injectable vaccines. Oral vaccines are taken by mouth, while injectable vaccines are administered via a syringe.

3. **Analyzing the Options**:
- **Typhoid**: Prevented by an inactivated typhoid vaccine, which is typically injected.
- **Polio**: Prevented by the oral polio vaccine, which is specifically designed to be taken orally.
- **Tetanus**: Prevented by the diphtheria and tetanus (DT) vaccine, which is administered via injection.
- **Cholera**: Can be prevented by both oral and injectable vaccines.

4. **Identifying the Oral Vaccine**: Among the options provided, the only disease that is primarily prevented by an oral vaccine is polio.

5. **Conclusion**: Therefore, the oral vaccine prevents the attack of polio.

**Final Answer**: The oral vaccine prevents the attack of polio.

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