title: [The immune system and its relation with infection process in children].
abstract: The immune system was studied in 30 cases of local infection (pneumonia) and 56 cases of generalized infection (sepsis). Predominantly children with immunologic deficiency of the humoral type (77% of the cases) characterized by unscheduled fatty transformation of the thymus, underdevelopment of B-zones of lymphoid organs, low level of IgM production and the lack of IgG and IgA production were found to die with pneumonia, whereas children with physiological immaturity of the immune system and in smaller numbers (41% of the cases) with deficiency of immunity of the cellular and phagocytic type as confirmed by immaturity of the thymic tissue or its dysplasia with hypoplasia of lymphoid organs died with sepsis. Immunological deficiency of the humoral type is accompanied by suppurative destructive lesions of the respiratory organs, immunodeficiency of the cellular and phagocytic type by necrotic changes in the septic focus and mucous membranes of the organs contacting the environment.
mesh_terms: D000917:Antibody Formation; D001402:B-Lymphocytes / Q000276:immunology; D002675:Child, Preschool; D006801:Humans; D007111:Immunity, Cellular; D007136:Immunoglobulins / Q000032:analysis; D007223:Infant; D007231:Infant, Newborn; D008198:Lymph Nodes / Q000276:immunology / Q000473:pathology*; D011014:Pneumonia / Q000276:immunology* / Q000473:pathology; D018805:Sepsis / Q000276:immunology* / Q000473:pathology; D013154:Spleen / Q000276:immunology / Q000473:pathology*; D013601:T-Lymphocytes / Q000276:immunology; D013950:Thymus Gland / Q000276:immunology / Q000473:pathology*
chemical_list: D007136:Immunoglobulins
vernacular_title: Immunnaia sistema i ee sviaz' s kharakterom infektsionnogo protsessa u deteĭ.