Giardiasis:  Giardia (lamblia) intestinalis as a cause of gastro-intestinal disease.
D005767:Gastrointestinal Diseases / Q000209:etiology*; D016829:Giardia lamblia; D005873:Giardiasis; D006801:Humans
GASTROINTESTINAL DISEASES/etiology and pathogenesis; GIARDIASIS