Lymphoid and compliment disorders causing immunodeficiency
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Adenosine deaminase deficiency (ADA deficiency) was discovered in 1972 and recognized as the first immunodeficiency disorder
Adenosine deaminase deficiency (ADA deficiency) is a metabolic disorder that causes immunodeficiency. It is caused by mutations in the ADA gene. It accounts for about 10–15% of all cases of autosomal recessive forms of severe combined immunodeficiency (SCID) among non-inbred populations.… Read more.

