title: Nutrition, immunity, and infection: present knowledge and future directions.
mesh_terms: D000293:Adolescent; D000368:Aged; D001361:Avitaminosis / Q000276:immunology; D003165:Complement System Proteins / Q000172:deficiency / Q000276:immunology; D006801:Humans; D007109:Immunity; D007121:Immunocompetence; D007153:Immunologic Deficiency Syndromes / Q000503:physiopathology; D007223:Infant; D007227:Infant Nutritional Physiological Phenomena; D007239:Infections / Q000276:immunology / Q000503:physiopathology; D008055:Lipids / Q000172:deficiency / Q000276:immunology; D009747:Nutritional Physiological Phenomena; D011502:Protein-Energy Malnutrition / Q000276:immunology / Q000503:physiopathology; D014131:Trace Elements / Q000172:deficiency
chemical_list: D008055:Lipids; D014131:Trace Elements; D003165:Complement System Proteins