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Severe combined immunodeficiency due to adenosine deaminase deficiency MeSH Supplementary Concept Data 2025
Inherited ADA deficiency resulting in immunodeficiency. It accounts for 15 % of SCID cases in infancy. Partial ADA deficiency may occur in some immunocompetent patients, who show decreased enzyme activity in erythrocytes, but retain sufficient enzyme activity in leukocytes and other nucleated cells. OMIM: 102700