title: [Characteristics of immunity in influenza].
abstract: Immunity in influenza is a complex phenomenon that depends upon numerous factors whose importance is not yet sufficiently known. The following mechanisms of defence are triggered by infection with the influenza virus: (a) The immune secretory system: -- IgA antibodies, --immune response in terms of the vaccinating dose, previous immunologic experience and time (appraised according to the moment in which infection started). (b) Serum antibodies: -- to the soluble antigen, -- to surface particulate antigens (hemagglutinin and neuraminidase), --antihemagglutinin and antineuraminidase antibodies, indicating the degree of protection. (c) Cellular immunity: -- influenza virus inducing the proliferation of lymphocytes in vitro and activating the inhibitory factor of mononuclear migration, -- mediated immunity. These problems of immunity have not yet been fully elucidated.
mesh_terms: D000914:Antibodies, Viral / Q000032:analysis; D000917:Antibody Formation; D006801:Humans; D007111:Immunity, Cellular; D007136:Immunoglobulins / Q000032:analysis; D007252:Influenza Vaccines / Q000008:administration & dosage; D007251:Influenza, Human / Q000276:immunology*; D008214:Lymphocytes / Q000276:immunology; D014611:Vaccination
chemical_list: D000914:Antibodies, Viral; D007136:Immunoglobulins; D007252:Influenza Vaccines
vernacular_title: Particularităţile imunităţii în gripă