Of course one person can make a difference. In My Sister's Keeper by Jodi Picoult, Anna is a "allogeneic donor" Which is perfect for her sister Kate when she needs leukocytes, stem cells, or bone marrow. These all help "fool" the body to thinking its healthy.When Kate ends up in the hospital, Anna ends up there right beside her because her genes match Kate's perfectly.(page.10)
I feel that Anna is definitely that one person who can make a difference on her sister, Kate's life. But she doesn't. She ends up suing her family for the right to her own body. She wants to be independent and doesnt want to always be dependent for her sister Kate. She could make a difference on Kate but she decides not too.
This website shows tons a real life stories who are hero's because of saving someones life by being an organ donor. One person is all it needs to save another persons life. While reading the story from Kentucky they mentioned a quote from Amelia who was sick girl who once said “The real heroes are the donor families. I look at it this way: there could have been two tragedies, but my donor family turned their tragedy into a blessing. I’m forever grateful.” Everyone who has been in this situation as found someone who has changed their life in a significante way. Amelia was scared she wasn't going to make it to the end of graduation but thanks to her donor mother, Amelia did graduate and took a full course load and summer classes and also got to be homecoming queen!