A California virus encephalitis that results_in inflammation located_in brain, has_material_basis_in Jamestown Canyon virus, which is transmitted_by Culiseta, transmitted_by Aedes, and transmitted_by Anopheles species of mosquitoes. The infection has_symptom headache, has_symptom fever, has_symptom neck stiffness, has_symptom photophobia, has_symptom nausea, has_symptom vomiting, and has_symptom seizures.