Edward Jenner discovered vaccines for which of the following diseases?
A. Small pox
B. BCG
C. Cholera
D. Typhoid
Correct Answer: Small pox
The basis for vaccination began in 1796 when the English doctor Edward Jenner noticed that milkmaids who had gotten cowpox were protected from smallpox. Jenner also knew about variolation and guessed that exposure to cowpox could be used to protect against smallpox.
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