3 years ago

What did Edward Jenner discover about the relationship between smallpox and cowpox?

1 answer:

8 0

In 1775 Jenner began to study the relationship between cowpox (a comparatively harmless disease) and the more dangerous and disfiguring smallpox. ... He hypothesized that exposure to cowpox rendered the body immune from smallpox. After nearly twenty years of experiments, he developed the first vaccine.

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4 years ago

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