B01.0

Clinical Causes: Reactivation of the varicella-zoster virus after initial chickenpox infection Hematogenous spread of the virus during an active chickenpox infection Viral dissemination from skin lesions to the central nervous system

Key Symptoms: Headache Neck stiffness Sensitivity to light (photophobia) Fever and chills Nausea and vomiting Confusion or altered mental status Seizures (occasionally) Drowsiness or lethargy

Diagnosis Path: Diagnosing varicella meningitis involves a combination of clinical assessment and laboratory tests. A healthcare provider may perform a lumbar puncture (spinal tap) to analyze cerebrospinal fluid (CSF), checking for signs of viral infection such as increased white blood cells, elevated protein levels, and decreased glucose. Polymerase chain reaction (PCR) testing of CSF can detect varicella-zoster virus DNA, confirming the diagnosis. Imaging studies like MRI or CT scans may be used to rule out other causes of meningitis or neurological symptoms. Blood tests may indicate recent or past infection through antibody presence.

Treatment Protocols: Treatment typically involves antiviral medications such as acyclovir or valacyclovir to combat the varicella-zoster virus. Supportive care includes resting, maintaining hydration, and managing symptoms like fever with appropriate medications. Hospitalization may be necessary for severe cases, especially if neurological symptoms are prominent. In addition, corticosteroids might be considered in some cases to reduce inflammation. Prompt medical attention is essential to reduce the risk of complications and promote recovery.