Bacterial meningitis is an acute infection and inflammation of the meninges, the protective membranes enveloping the brain and spinal cord, caused by bacteria reaching the subarachnoid space and cerebrospinal fluid. It is a medical emergency: the resulting inflammatory response can raise intracranial pressure, impai…
Bacterial meningitis is an acute infection and inflammation of the meninges, the protective membranes enveloping the brain and spinal cord, caused by bacteria reaching the subarachnoid space and cerebrospinal fluid. It is a medical emergency: the resulting inflammatory response can raise intracranial pressure, impair cerebral blood flow, and injure neural tissue, leading to complications such as seizures, focal deficits, hearing loss, brain damage, and death if not treated promptly. Bacteria may reach the meninges through the bloodstream, by direct spread from adjacent infections, or via anatomical breaches arising from trauma or structural lesions, including post-traumatic defects and conditions associated with pituitary or other intracranial pathology. Diagnosis relies on clinical recognition of meningeal signs together with examination of cerebrospinal fluid and supportive biomarkers, while distinguishing bacterial from other causes guides urgent antimicrobial therapy. Effective management depends on rapid initiation of appropriate antibiotics, and outcomes are influenced by the causative organism, host factors, and the speed of treatment. The clinical picture overlaps with other central-nervous-system infections and meningeal syndromes, underscoring the importance of accurate etiologic identification. Research also addresses the broader threat of antimicrobial resistance, which complicates treatment of bacterial infections including those affecting the nervous system. Bacterial meningitis thus integrates microbiology, neurology, and infectious-disease medicine in the urgent diagnosis and treatment of a life-threatening neurological infection.
5 peer-reviewed articles, ranked by relevance. Each links to its DOI.
The 5 articles above have been cited 4 times in the scholarly literature. Citation data via OpenAlex and Crossref, updated Jun 2026.
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