1476BiologyMedium
Immunization by vaccination was first introduced by?
AEdward Jenner in 1795
BFleming in 1945
CFlore & Chain in 1795
DFlorey & Chain in 1975
Correct answer
A. Edward Jenner in 1795
Explanation
Edward Jenner in 1795 is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.