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 filariasis that is characterized by the thickening of the skin and underlying tissues, especially in the legs, male genitals and female breasts, caused by thread-like parasitic worms Wuchereria bancrofti, Brugia malayi or Brugia timori, which inhabit the lymphatics. These nematodes are transmitted by mosquitoes. Acute symptoms include fever, lymphadenitis, lymphangitis, funiculitis, and epididymitis. Chronic symptoms include abscesses, hyperkeratosis, polyarthritis, hydroceles, lymphedema, and elephantiasis. (DO)