title: Defects in cell-mediated immunity.
mesh_terms: D002178:Candidiasis, Chronic Mucocutaneous / Q000276:immunology; D004062:DiGeorge Syndrome / Q000276:immunology; D006801:Humans; D007111:Immunity, Cellular; D007153:Immunologic Deficiency Syndromes / Q000276:immunology*; D011020:Pneumonia, Pneumocystis / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology