Inflammation of the membranes surrounding the brain and spinal cord. Bacterial meningitis is particularly dangerous and can be prevented through vaccination.
Meningitis is an inflammation of the meninges, the protective membranes covering the brain and spinal cord. It can be caused by bacteria, viruses, fungi, or other pathogens. Bacterial meningitis is the most serious form and requires immediate medical attention (CDC, 2024).
In the U.S., the most common causes of bacterial meningitis are:
Meningococcal disease causes approximately 1,000-2,600 cases annually in the U.S., with 10-15% fatality rate.
Vaccination remains the most effective strategy for preventing bacterial meningitis. The following describes established medical consensus for clinical management.
Bacterial meningitis is a medical emergency requiring immediate hospitalization. First-line treatment is empirical IV antibiotics — Vancomycin plus Ceftriaxone — initiated as rapidly as possible, ideally within 60 minutes of presentation. Dexamethasone (corticosteroid) is given concurrently to reduce inflammation and lower risk of hearing loss and neurological complications. IV crystalloid infusion is used to manage septic shock. Lumbar puncture for CSF culture guides antibiotic de-escalation once organism is identified. Close contacts may require prophylactic antibiotics.
Disclaimer: This information is for educational purposes only. Treatment decisions must be made by a qualified healthcare provider.