Allergy and infection--a new concept.
D000293:Adolescent; D000485:Allergens; D001249:Asthma / Q000209:etiology; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D012130:Respiratory Hypersensitivity / Q000150:complications*; D012141:Respiratory Tract Infections / Q000150:complications*; D006255:Rhinitis, Allergic, Seasonal / Q000209:etiology
D000485:Allergens