Etiologies: Enteroviruses (eg, coxsackievirus) Herpesviruses (eg, HSV) Arboviruses (eg, West Nile) Signs / symptoms: Fever Headache Vomiting Altered mental status Nuchal rigidity Diagnosis: CSF aseptic pleocytosis Viral serologies Treatment / management: Supportive care Acyclovir for HSV