Overview
Meningitis is inflammation of meninges, commonly bacterial (S.pneumo, N.meningitidis) or viral.
Symptoms
- •Fever
- •Nuchal rigidity
- •Photophobia
- •Altered mental status
Diagnosis
- ✓Lumbar puncture
- ✓CSF: glucose↓, protein↑, WBC↑
- ✓Blood culture
Treatments
- →Ceftriaxone + Vancomycin
- →Dexamethasone
- →Acyclovir (if viral suspected)
Risk Factors
⚠️Close contact
⚠️Asplenia
⚠️Complement deficiency
⚠️Dorm living
Key Facts
- ℹ️Mortality 10-15% bacterial
- ℹ️Vaccines: MenACWY, PCV
ICD-10: G00-G03 | Prevalence: nadir
Last updated: 11/9/2025