RGD uses the Human Disease Ontology (DO, https://disease-ontology.org/) for disease curation across species. RGD automatically downloads each new release of the ontology on a monthly basis. Some additional terms which are required for RGD's curation purposes but are not currently covered in the official version of DO have been added. As corresponding terms are added to DO, these custom terms are retired and the DO terms substituted in existing annotations and subsequently used for curation.
A parasitic helminthiasis infectious disease that involves infection of skin, eyes, and viscera in humans by the parasitic nematodes Ancylostoma braziliense, Ancylostoma ceylanicum, Ancylostoma duodenale or Ancylostoma caninum. The larvae cause lesions on the skin at the site of penetration. The infection has_symptom intestinal bleeding, has_symptom abdominal pain, has_symptom anemia, has_symptom severe diarrhea and has_symptom malnutrition. (DO)