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 "David Vetter"): Vetter's surname (last name) was not revealed to the general public until 10 years after his death in order to preserve his family's privacy.
Relevant evidence: No