Related Experiment Video
Updated: Jun 25, 2026

10:08
Metagenomic Next-Generation Sequencing of Cerebrospinal Fluid for the Detection of Central Nervous System Pathogens
Published on: April 17, 2026
Central nervous system infections.
1Department of Emergency Medicine, University of Michigan, Taubman Center, Ann Arbor, MI 48109-5303, USA.
Emergency Medicine Clinics of North America
|February 17, 2009
Summary
Central nervous system infections like meningitis and encephalitis are devastating. This review covers their changing epidemiology, diagnosis, and emergency treatment.
Area of Science:
- Neurology
- Infectious Diseases
- Emergency Medicine
Background:
- Central nervous system (CNS) infections represent a significant global health burden.
- These infections, including meningitis, encephalitis, and brain abscesses, are historically devastating.
- Understanding their evolving epidemiology is crucial for effective management.
Purpose of the Study:
- To describe the changing patterns and epidemiology of common CNS infections.
- To review the pathophysiology of these infections.
- To outline the current emergency physician's approach to diagnosis and treatment.
Main Methods:
- Review of current literature on CNS infections.
- Analysis of epidemiological trends.
- Synthesis of diagnostic and therapeutic strategies.
Main Results:
- CNS infections exhibit dynamic epidemiological shifts.
- Accurate diagnosis relies on timely recognition and appropriate investigations.
- Prompt and targeted treatment is critical for patient outcomes.
Conclusions:
- Emergency physicians require up-to-date knowledge of CNS infection epidemiology and management.
- Early diagnosis and intervention significantly impact morbidity and mortality.
- Continuous review of treatment protocols is essential.
More Related Videos
Related Concept Videos
Cryptococcal Meningitis
Cryptococcal meningitis is a life-threatening opportunistic infection predominantly associated with HIV/AIDS, accounting for over 100,000 deaths annually worldwide. However, it also affects individuals with other forms of immunosuppression, including those undergoing immunosuppressive therapy, organ transplant recipients, patients with innate immunodeficiencies, and individuals with hematological disorders. The infection is caused mainly by Cryptococcus neoformans and Cryptococcus gattii,...
Viral Meningitis
Viral meningitis is the most common form of meningitis and is often referred to as aseptic meningitis to indicate the absence of bacterial involvement. It is generally milder than bacterial meningitis, with symptoms including fever, headache, stiff neck, drowsiness, nausea, photophobia, and vomiting. Rarely, more severe manifestations or death may occur. Common causative agents include enteroviruses, particularly coxsackie A and B viruses and echoviruses, all members of the Enterovirus genus...
Encephalitis ll: Pathophysiology
Encephalitis is inflammation of the brain parenchyma caused by direct viral invasion or immune-mediated mechanisms triggered by infections or tumors. Both processes lead to neuronal injury, disrupted neurotransmission, and diverse neurological symptoms, often with overlapping clinical and pathological features.Autoimmune EncephalitisIn autoimmune encephalitis, antibodies target neuronal antigens on cell surfaces, synapses, or within neurons. A key example is anti-NMDAR encephalitis, which can...
Bacterial Meningitis
Bacterial meningitis is a severe infectious disease involving inflammation of the meninges, the protective membranes surrounding the brain and spinal cord. It occurs when pathogenic bacteria cross the blood–brain barrier and enter the cerebrospinal fluid. Common causative organisms include Neisseria meningitidis, Streptococcus pneumoniae, Haemophilus influenzae type b, Listeria monocytogenes, and Escherichia coli K1. The exact route of entry varies by pathogen and host condition.Routes of Entry...
Brain Abscess l: Introduction
A brain abscess is a focal, intracerebral infection characterized by a localized collection of pus within the brain parenchyma, resulting from microbial invasion and the body’s inflammatory response. It progresses through stages: early and late cerebritis, followed by early and late capsule formation, reflecting tissue destruction, immune response, and eventual encapsulation.Etiology and PathogenesisCausative organisms vary with source and host factors, often involving polymicrobial infections,...
Bacterial Meningitis II: Pathophysiology
Bacterial meningitis typically begins when pathogens such as Neisseria meningitidis and Streptococcus pneumoniae colonize the nasopharynx and invade the bloodstream. This process is facilitated by bacterial virulence factors, such as polysaccharide capsules, which resist phagocytosis and complement-mediated killing. Less commonly, bacteria reach the central nervous system via contiguous spread from infections like otitis media or sinusitis, through congenital or acquired dural defects, or...

