Edward Jenner discovered the vaccine for ________ in 1798.

Options

A. Small pox
B. Polio
C. Typhoid
D. Malaria

Answer

**Step-by-Step Solution:**

1. **Identify the Scientist**: The question asks about Edward Jenner, who is a well-known figure in the history of vaccines.

2. **Recall the Year**: The year mentioned in the question is 1798. This is significant as it marks the time when Jenner made his discovery.

3. **Understand the Discovery**: Edward Jenner is credited with discovering the first successful vaccine. This involved using material from cowpox to provide immunity against a more dangerous disease.

4. **Link Cowpox to Smallpox**: Jenner observed that milkmaids who had contracted cowpox did not get smallpox. This observation led him to hypothesize that exposure to cowpox could protect against smallpox.

5. **Conduct the Experiment**: Jenner conducted an experiment where he inoculated a young boy with cowpox and later exposed him to smallpox. The boy did not get sick, confirming Jenner's hypothesis.

6. **Conclude the Answer**: Based on this historical context, the answer to the question is that Edward Jenner discovered the vaccine for **smallpox** in 1798.

**Final Answer**: Edward Jenner discovered the vaccine for **smallpox** in 1798.

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