Question

who discovered vaccine for the first time ? name two disease which can be prevented by using vaccines.​

Answer 1

Answer:

In 1796, the British doctor Edward Jenner demonstrated that an infection with the relatively mild cowpox virus conferred immunity against the deadly smallpox virus. Cowpox served as a natural vaccine until the modern smallpox vaccine emerged in the 19th century.

Answer 2

Explanation:

☆Edward Jenner discovered vaccine for the first time.

TWO DISEASES WHICH CAN BE PREVENTED BY VACCINE ARE:

POLIO AND RABIES.