| Disease ID | Source | Name | Description |
| 607594 | OMIM | Immunodeficiency, common variable, 1 (CVID1) | A primary immunodeficiency characterized by antibody deficiency, hypogammaglobulinemia, recurrent bacterial infections and an inability to mount an antibody response to antigen. The defect results from a failure of B-cell differentiation and impaired secretion of immunoglobulins; the numbers of circulating B-cells is usually in the normal range, but can be low. The disease is caused by variants affecting the gene represented in this entry. |