immunoglobulin A deficiency


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immunoglobulin A deficiency

[‚im·yə·nō‚gläb·yə·lən ¦ā di′fish·ən·sē]
(immunology)
An immune system disorder in which lower than normal amounts of immunoglobulin A are produced, resulting in increased susceptibility to infections such as chronic sinusitis, chronic pulmonary infections, and digestive problems.