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Jenner and Fleming: Two Heroes of Medicine

Jenner got an idea about helping people with

smallpox. First, he gave some cowpox germs to a boy.

The boy got a little sick.

Then, when the boy was

near smallpox germs, he

did not get sick.

Jenner gave people cowpox germs.

Unit 12 | Jenner and Fleming: Two Heroes of Medicine