Nutrition and immunity.
D002648:Child; D006801:Humans; D007107:Immune System / Q000502:physiology; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D007239:Infections / Q000453:epidemiology / Q000276:immunology; D009748:Nutrition Disorders / Q000453:epidemiology / Q000276:immunology*; D011502:Protein-Energy Malnutrition / Q000276:immunology