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 involves parasitic infection by the nematodes Mansonella ozzardi or Mansonella perstans, which reside in the skin or body cavities. The nematode is transmitted through the bite of midges and blackflies. (DO)