Question

The first vaccine against smallpox disease was developed in the year 1797 by _____

A G.J. Mulder Correct Answer Incorrect Answer
B E. Jenner Correct Answer Incorrect Answer
C G.J. Mendel Correct Answer Incorrect Answer
D Robert Koch Correct Answer Incorrect Answer
E None of the above Correct Answer Incorrect Answer

Solution

First vaccination, Edward Jenner took pus from a cowpox lesion, inserted it into an incision on a boy's arm to develop the immunity against smallpox in 1797.

Practice Next
×
×