| Lymphocyte defects |
| Severe combined immunodeficiency (multiple types) |
| Wiskott-Aldrich syndrome |
| CD40 ligand deficiency (X-linked hyper IgM syndrome) |
| CD40 deficiency (autosomal recessive hyper IgM syndrome) |
| X-linked lymphoproliferative disease |
| Interferon gamma receptor defects |
| NF kappa B essential modifier (NEMO) deficiency |
| Hemophagocytic lymphohistiocytosis |
| Phagocyte defects |
| Chronic granulomatous disease |
| Leukocyte adhesion deficiency type 1 |
| Griscelli syndrome type 2 |
| Chediak-Higashi syndrome |
