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 chronic meningitis that is characterized by the presence of 10 or more eosinophils/microL in the cerebrospinal fluid (CSF) or a CSF eosinophilia of at least 10 percent. Symptoms of this condition range from mild headache to severe, throbbing headache, dizziness, nausea, vomiting, fever, neck stiffness, paresthesia, and stabbing pain in the trunk and limbs aggravated by touch. (DO)