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| Immunity, Mucosal Immune Response, Mucosal | Mucosal Immunity | Immune Responses, Mucosal | Mucosal Immune Response | Mucosal Immune Responses 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 (IMMUNOGLOBULIN A, SECRETORY) that serves to protect these ports of entry into the body. |