Grasshopper allergy.
D000293:Adolescent; D000485:Allergens; D003888:Desensitization, Immunologic; D005500:Follow-Up Studies; D006110:Grasshoppers; D006801:Humans; D006969:Hypersensitivity, Immediate / Q000175:diagnosis; D008297:Male; D012882:Skin Tests; D014581:Urticaria / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy
D000485:Allergens