I shall award brainliest to the first correct answer AND the correct answer to my riddle :D
Who Invented Vaccination?
Edward Jenner is the correct answer for the inventor of vaccination. He was an English physician who developed the first successful smallpox vaccine.
Riddle Time!
A is the brother of B. B is the brother of C. C is the father of D. So how is D related to A?
Answer:
D is the Nephew of A.