Edward Jenner and smallpox
- Jenner found that people who caught cowpox did not catch smallpox.
- he tested his theory on an 8 year old boy
- he gave the boy cowpox then gave him the deadly smallpox and magically the boy did not develop smallpox!
Louis Pasteur and spontaneous generation
- people thought that microbes spontaneously appeared ou of non living material and contaminated food and liquids
- Pasteur proved that the…