Vaccine for small pox is discovered by ________.

Options

A. Louis Pasteur
B. Alexander Fleming
C. Edward Jenner
D. John Mendal

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks who discovered the vaccine for smallpox.

2. **Definition of Vaccine**: A vaccine is a preparation that provides immunity to a disease. It usually contains a harmless form of the disease-causing microorganism or its components.

3. **Historical Context**: Smallpox is an infectious disease caused by the variola virus, which leads to severe symptoms including rashes and scars.

4. **Identifying the Scientist**: Among the options provided (Lois Pascho, Alexander Fleming, Edward Jenner, John Mendel), we need to identify who is known for discovering the smallpox vaccine.

5. **Correct Answer**: Edward Jenner is the scientist credited with the discovery of the smallpox vaccine in the year 1796.

6. **Conclusion**: Therefore, the answer to the question is "Edward Jenner."

**Final Answer**: Vaccine for smallpox is discovered by Edward Jenner.

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