Question: What is the name of the lead character in a novel about an 18 year old with severe combined immunodeficiency, confined to her home; written by Jamaican-American author Nicola Yoon? 
Sentence (from "Everything, Everything (novel)"): Everything, Everything is the debut young adult novel by American author Nicola Yoon, first published by Delacorte Books for Young Readers in 2015.
Relevant evidence: Yes