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.

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