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2693 pages added, reviewed or updated during the last month (last updated: 13/4/2021)


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IgG subclass deficiency

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IgG subclass deficiency normally refers to an immaturity in the development of IgG2 and IgG4 subclasses. The result is recurrent infections with a mild degree of failure to thrive.

Superficially the immunoglobulin levels may be normal; however looking at subclasses reveals the deficiency.

There is a close association with IgA deficiency.

Last reviewed 01/2018

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