The association between COVID-19 and<unk>  was made in 2020.<unk>  may be caused by the SARS-CoV-2 virus. There is no established system for the classification of<unk> . The exact pathogenesis of<unk>  in COVID-19 patients is not fully understood. It is thought that<unk>  is the result of cytokine release, direct invasion, metabolic disturbances, inflammation, dehydration, and hypoxia.<unk>  must be differentiated from other diseases that cause<unk> , such as migraine, tension-type<unk> , cluster<unk> , seizure, meningitis, encephalitis, neurosyphilis, SAH, subdural hematoma, brain tumor, hypertensive encephalopathy, brain abscess, multiple sclerosis, hemorrhagic stroke, Wernickes encephalopathy, and drug toxicity. A positive history of fever and cough in addition to<unk>  is suggestive of<unk> .
COVID-19-associated headache
COVID-19-associated polyneuritis cranialis
COVID-19-associated stroke
Eastern equine encephalitis
Western equine encephalitis
COVID-19-associated meningitis
Herpes simplex encephalitis
COVID-19-associated seizure