Selective immunoglobulin A deficiency

（重定向自Selective IgA deficiency）

Selective immunoglobulin A (IgA) deficiency (SIgAD) is a genetic immunodeficiency. People with this deficiency lack immunoglobulin A (IgA), a type of antibody that protects against infections of the mucous membranes lining the mouth, airways, and digestive tract. It is defined as an undetectable serum IgA level in the presence of normal serum levels of IgG and IgM. It is the most common of the primary antibody deficiencies.

单词	Selective IgA deficiency
释义	Selective IgA deficiency 英语百科 Selective immunoglobulin A deficiency （重定向自Selective IgA deficiency） Selective immunoglobulin A (IgA) deficiency (SIgAD) is a genetic immunodeficiency. People with this deficiency lack immunoglobulin A (IgA), a type of antibody that protects against infections of the mucous membranes lining the mouth, airways, and digestive tract. It is defined as an undetectable serum IgA level in the presence of normal serum levels of IgG and IgM. It is the most common of the primary antibody deficiencies.
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