Edward Jenner

[MujiHuz]

Hi everyone
I needed help with a question in my assignment, my teacher wont help, any help is appreciated
The question is
" Identify how Jenner used the scientific model to test and validate his ideas"

some important information to know:
( Edward Jenner was an English country doctor who discovered world’s first vaccination as a treatment for smallpox. In his method, Jenner exposed human body to cowpox virus which belongs to the same family as smallpox (Orthopox family of viruses) but with less severe symptoms. Patients who recovered from the cowpox disease showed immunity against smallpox.  This method was then used to eradicate smallpox worldwide. )

Thanks everyone. I've been stuck on this question for days and my assignment is due in 2 days. I would be forever in debt to anyone who could help me here.