The success of vaccinations was first demonstrated by
A)Jenner.
B)Pasteur.
C)Landsteiner.
D)Kupffer.

Question

Quizplus · Accepted Answer

Jenner demonstrated the success of vaccinations by developing the smallpox vaccine in the late 18th century. He observed that milkmaids who contracted cowpox, a mild form of smallpox, were protected from smallpox. He then tested his theory by vaccinating a young boy with cowpox and subsequently exposing him to smallpox. The boy did not contract smallpox and thus the smallpox vaccine was born.

The Success of Vaccinations Was First Demonstrated by