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Related Concept Videos

Bacterial Meningitis I: Introduction01:22

Bacterial Meningitis I: Introduction

Bacterial meningitis is a severe, life-threatening inflammation of the meninges, particularly the pia mater and arachnoid mater, affecting the subarachnoid space, ventricles, and cerebrospinal fluid (CSF). If untreated, it can lead to significant neurological complications or death.Causative AgentsCommon pathogens vary with age and immune status. In adults, major organisms include Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae. Streptococcus agalactiae (group B...
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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...
Cryptococcal Meningitis01:27

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,...
Bacterial Meningitis II: Pathophysiology01:26

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...
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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...
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Related Experiment Video

Updated: Jul 15, 2026

Inducing Meningococcal Meningitis Serogroup C in Mice via Intracisternal Delivery
10:03

Inducing Meningococcal Meningitis Serogroup C in Mice via Intracisternal Delivery

Published on: November 5, 2019

Meningococcal disease and meningitis.

Ricardo G Branco1, Carolina F Amoretti, Robert C Tasker

  • 1Department of Paediatrics, School of Clinical Medicine, University of Cambridge, Cambridge, UK. rgb35@cam.ac.uk

Jornal De Pediatria
|May 9, 2007
PubMed
Summary

Early recognition and treatment of meningococcal disease (MD) are crucial. Prompt fluid resuscitation and antibiotics significantly improve outcomes, but further research is needed for other therapies.

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Last Updated: Jul 15, 2026

Inducing Meningococcal Meningitis Serogroup C in Mice via Intracisternal Delivery
10:03

Inducing Meningococcal Meningitis Serogroup C in Mice via Intracisternal Delivery

Published on: November 5, 2019

Induction of Leptomeningeal Cells Modification Via Intracisternal Injection
05:55

Induction of Leptomeningeal Cells Modification Via Intracisternal Injection

Published on: May 7, 2020

Area of Science:

  • Pediatric Infectious Diseases
  • Critical Care Medicine
  • Microbiology

Background:

  • Meningococcal disease (MD) is a significant cause of mortality in children.
  • Rapid progression necessitates high clinical suspicion for early diagnosis.

Purpose of the Study:

  • To conduct a literature review on the diagnosis and management of meningococcal disease.
  • To synthesize current knowledge on effective treatment strategies.

Main Methods:

  • Non-systematic literature review using MEDLINE.
  • Keywords: meningococcal, septic shock, diagnosis, treatment.
  • Article selection based on relevance and author opinion.

Main Results:

  • Early, aggressive fluid resuscitation and antibiotic therapy are key to improving outcomes.
  • Pediatric intensive care often requires substantial fluids and vasoactive drugs.
  • Coagulopathy is common; effectiveness of colloids, steroids, insulin, and activated protein C requires further study.
  • Extracorporeal membrane oxygenation may benefit ARDS, not refractory shock.
  • Meningitis diagnosis is challenging due to patient instability; managing cerebral edema and perfusion is critical.
  • Steroids do not appear to impact outcomes in meningococcal meningitis.

Conclusions:

  • Meningococcal disease is a life-threatening infection requiring prompt recognition and intervention.
  • Time-sensitive fluid resuscitation and antibiotics are the most effective treatments.
  • The role of adjunctive therapies like steroids needs further investigation.