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 viral infectious disease that is a hemorrhagic fever, has_material_basis_in Alkhurma hemorrhagic fever virus, which is transmitted by Ornithodoros savignyi tick bite, transmitted by ingestion of unpasteurized camel milk, or transmitted by entry via skin wound. The infection has symptom headache, has symptom joint pain, has symptom muscle pain, has symptom vomiting, has symptom thrombocytopenia, and has symptom hemorrhagic fever. (DO)