1.He will undergo a marro bone transplant and his mom wants every body to where yellow to show support. 2.the immune. because his family was wearing yellow to support him 3.it is a disease when a body is born without T cells, because of this person named David vetter

they turn white and this one cell multiplys in order for them to find a cure they would half to study the disease in a labortory rouge cells transformed into "cops"