 | The first vaccine protected people from Smallpox. In 1979, English doctor Edward Jenner noticed that people who caught a disease called cowpox (a less intense form of smallpox) did not become infected with smallpox, a deadly disease. To test his hypothesis, Jenner injected an 8-year old boy with cowpox. The boy did not catch smallpox. Therefore, the first vaccine was created! |
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