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 laryngeal disease involving an inflammation of the larynx leading to hoarse voice or a complete loss of voice due to irritation of the vocal cords caused by viral, bacterial or fungal infection, inflammation due to overuse of the vocal cords and excessive coughing, smoking, or alcohol consumption. (DO)