Selective deficiency of IgA is the most common immune deficiency disorder. Persons with this disorder have low or absent levels of a blood protein called immunoglobulin A.
IgA deficiency is usually inherited, which means it is passed down through families. However, cases of drug-induced IgA deficiency have been reported.
See also: Celiac disease - sprue
Azar AE. Evaluation of the adult with suspected immunodeficiency. Am J Med. 2007;120(9):764-768.
Ballow M. Primary immunodeficiency diseases. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier;2007:chap 271.
Morimoto Y. Immunodeficiency overview. Prim Care. 2008;35(1):159-157.
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