Immunodeficiency 19, also known as cd3-delta deficiency, is related to granulomatous disease, chronic, autosomal recessive, 3 and adenosine deaminase deficiency, and has symptoms including diarrhea An important gene associated with Immunodeficiency 19 is CD3D (CD3 Delta Subunit Of T-Cell Receptor Complex), and among its related pathways/superpathways are Class I MHC mediated antigen processing and presentation and Akt Signaling. Affiliated tissues include bone marrow and bone, and related phenotypes are severe combined immunodeficiency and severe viral infection