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Mucosal Immunity
Definition 1
Immunoglobulin A secretion by mucosal epithelia in the gastrointestinal, respiratory, and genitourinary tracts. Mucosal immunity promotes resistance toward bacteria, viruses, and parasites in these ports of entry into the body. (NCI Thesaurus)
Definition 2
Nonsusceptibility to the pathogenic effects of foreign microorganisms or antigenic substances as a result of antibody secretions of the mucous membranes. Mucosal epithelia in the gastrointestinal, respiratory, and reproductive tracts produce a form of IgA (IGA, SECRETORY) that serves to protect these ports of entry into the body. (NLM, Medical Subject Headings)
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