What are three pieces of evidence that support the claim that Jenner has been given credit for starting and spreading the practice of immunization? ANSWER: Jenner was first vaccinated at the age of 8. Becoming interested in diseases he sought out to create a vaccine for smallpox. Edward Jenner became known as the "father of immunology." When he created the vaccination for smallpox, he tested it and spread it across the world.

(Key points needed to be correct)
He thought to intentionally infect people.
He tested a vaccine.
He sent out the vaccine.
He won many awards.
Others continued his work.