In 1796, Jenner carried out his experiment on an eight-year-old boy named James. After
making a small incision on James’ arm, he injected the cowpox fluid from Sarah’s arm into
James’ arm. After James had recovered from cowpox, Jenner proceeded to give James the
smallpox disease. After many tries, James never contracted the smallpox disease.Jenner was
positive that his theory was working. Once it was proven that James had no signs of smallpox,
Jenner then conducted the same experiment on 5 more children, even one of his own, and the
experiment produced the same results.
**EDIT** This one is the new one.
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