Urticaria and giardiasis.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005243:Feces / Q000469:parasitology; D005260:Female; D005872:Giardia / Q000302:isolation & purification; D005873:Giardiasis / Q000150:complications*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014581:Urticaria / Q000209:etiology* / Q000469:parasitology